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Abstract The international system is currently undergoing a process of reconfiguration that is having an impact on all areas of global development. In this process of reordering power relations, there is a tendency to move towards multipolarity, leaving behind the unipolar coalition established after the Second World War. In this context, several emerging powers are gaining increasing international power, which has led to changes in the hierarchy of power on the international geopolitical chessboard. Such is the case of the People's Republic of China, which has established itself not only as a power of great impact and relevance in the Asian region, but also in the entire international system. Namely, the management of the government and the Party in terms of innovation, industrialization, informatization, productivity, expansion and internationalization of its economic model, positions this country as the most dynamic center of the international economy. Evidencing that alternative models to the capitalist system are possible and viable, which strengthens the trend towards a systemic transition and multipolarity in the International System Introduction In the last two decades, a set of geopolitical and geoeconomic tensions and conflicts have become evident, with significant implications extending throughout the International System. As a result, we are currently experiencing a convulsion of the established order, giving way to a process of new global reconfigurations. In this context, several researchers and academics such as Jorge Casals, Leyde Rodríguez, Juan Sebastián Schulz, among others, have noted that these conditions have led to a crisis and hegemonic transition process, with a trend toward multipolarity in which the Asia-Pacific region is gaining increasing relevance. This article, titled "The International Reconfiguration’s Process Towards Multipolarity: The Role of China as an Emerging Power," is dedicated to analyzing the position of this country within the current international reconfiguration of power. Accordingly, the first section will systematize some essential guidelines to understand the current crisis and the decline of the hegemonic order established in the post-World War II period. The second section will address China's positioning amid the international reconfiguration of power. In this regard, it is important to note that China's rapid rise highlights how development management aligned with the Sustainable Development Goals can lead to a shift in the paradigm of international relations, as well as power reconfigurations that challenge the current balance of forces. Thus, it can be affirmed that China's rise constitutes a decisive element within the current trend toward multipolarity. DevelopmentNew International Order: Approaches to the Multipolar Reconfiguration of the International System The current international context is marked by a process of crisis. This crisis reflects the fact that the world order no longer aligns with the correlation of forces that gave rise to it during the post-World War II period. It is not a circumstantial crisis, but rather the interlinking of various interconnected crises that span across all sectors of life. That is to say, the effects of one crisis often become the causes of another, involving economic, political, social, cultural, ethical, moral, technological, commercial, and environmental components. In other words, it is a structural and systemic crisis—one that cannot be resolved unless a similarly systemic transformation occurs. To gain greater clarity, it is important to consider that the consolidation of the capitalist system brought about the process of globalization. This, in turn, introduced large-scale production and technological development capable of increasing output. This process, along with other characteristics of the system, has exponentially accelerated social inequalities between developed and developing countries. It has also led to strategic tensions over the control of resources, raw materials, and inputs, resulting in geopolitical conflicts. Furthermore, the capitalist system has imposed an extremely high environmental cost, demonstrating that it is exceeding both its own limits and those of the planet. Specifically, in its constant pursuit of profit and maximization of gains, negative environmental impacts are not factored into cost-benefit analyses, leading to widespread environmental degradation. Among other harms caused by the system, we observe a decline in investment rates, an increase in public debt, loss of autonomy in monetary policy, rising unemployment levels, reductions in real wages, and growing inequality, among others. In short, capitalism has become an unsustainable system whose primary concern is profit generation—something that is currently entirely incompatible with environmental preservation and the responsible use of natural resources. Therefore, it can be affirmed that some of its most alarming effects include: vast amounts of currency without backing, increasingly concentrated in fewer hands; acceleration of capital concentration in the West; rising military expenditures; and environmental pollution and destruction (Casals, J., 2023). On the other hand, it is necessary to clarify that, for a particular state to be considered hegemonic, it must not only exert its influence predominantly within the system of international relations; its hegemonic role must also be linked to the founding and establishment of a universally accepted concept of world order. That is, the majority of other states must recognize it as such and identify with the model promoted by the hegemon. Therefore, it is not merely a matter of a hierarchical order among states, but rather the adoption of a dominant model of production that involves those states. As a result, certain mechanisms or general rules of conduct are established for the participating states. For this reason, a hegemonic crisis involving the dominant actor in the system of international relations leads to a crisis in the social, economic, political, and institutional structures upon which that actor’s dominance was built. In light of these elements, we currently observe a set of powers within the International System that are vying to establish a new distribution of power—one that moves away from the unipolar coalition led by the United States following World War II. From this perspective, Juan Sebastián Schulz asserts: “A hegemonic crisis occurs when the existing hegemonic state lacks either the means or the will to continue steering the interstate system in a direction broadly perceived as favorable—not only for its own power, but also for the collective power of the dominant groups within the system.” (Schulz, J. S., 2022) As a result, strategic alliances have been formed and new power groups have emerged that influence international relations.These blocs are precisely what the new polarity is forming around, increasingly reinforcing the trend toward multipolarity. This is a system in which hegemonic influence is not determined by a single power, but by two, three, or more. In this regard, Juan Sebastián Schulz further notes that a process of insubordination is becoming evident, particularly in the Western peripheries. As a consequence, several countries have begun to criticize the configuration of the contemporary world order, initiating efforts to organize and propose alternative models (Schulz, J. S., 2022). This reveals the emergence of a new kind of power hierarchy, generating a global order in which a diversity of forces and actors prevails. In this context, China has experienced rapid growth, thereby contributing to the trend toward multipolarity. While this does not imply that the United States will cease to be one of the central powers in the system of international relations—given its considerable global influence—it is evident that there is a noticeable decline in the dominance it held during the unipolar era that emerged after the collapse of the USSR in 1991. This process of intersystemic transition unfolds in various phases. First, there is an observable economic transition marked by a shift in the center of gravity of the global economy toward emerging and developing economies. This shift is accompanied by a necessary technological transition, characterized by a new struggle—this time to lead the technological revolution. These changes, in turn, must be supported by a political transition. Currently, countries from the Global South have gained increasing prominence on the international stage [1]. From this foundation, a geopolitical transition is also underway, where the center of gravity and decision-making—once concentrated in the Anglo-Saxon West—is shifting toward the Asia-Pacific region. Finally, a cultural or civilizational transition is taking place, wherein the previously dominant value system is giving way to the rise of a new worldview. Based on this, the phases of the transition process can be outlined as follows: Existence of a stable order that brings together the majority of nation-states in the International System. - A crisis of legitimacy begins to affect the established global order. - A deconcentration and delegitimization of power emerges, impacting the hegemonic power. - An arms race and formation of alliances ensue in an attempt to preserve the hierarchical order by any means. This leads to a widespread crisis and the rise and emergence of new actors. - A necessary resolution of the international crisis. - Renewal of the system. (Schulz, J. S., 2022) In light of the above, it can be stated that a “new international order” is taking shape. Its manifestations are multifaceted, such as: - The rise of movements and associations of states that serve as alternatives to the neoliberal order. - Emerging powers like China and Russia are gaining strength in various sectors of the international geopolitical arena. - Russia's confrontation with NATO in the context of the conflict with Ukraine. - Sanctions imposed by the United States on various NATO and European Union countries have strengthened the BRICS nations. - The incorporation of new members into BRICS can be seen as an attempt to counterbalance the economic and political dominance of the United States and the European Union. - The expansion of anti-imperialist and anti-neoliberal integration mechanisms that promote South-South cooperation, such as the G-77 + China group. - The financial sanctions imposed by the West on Russia in the context of the Ukraine conflict have sparked a debate about the viability of the international monetary system and the role of the U.S. dollar as a reserve currency. - China and Russia conduct transactions in yuan and sell oil in this currency to Iran, Venezuela, and Gulf countries. China has increased its economic and political influence in the world, which can be seen as a challenge to U.S. hegemony. Its leadership within BRICS and its growing role in the global economy may be indicators of a shift in the balance of power. All these developments reflect a growing awareness within the International System of States regarding the importance of international cooperation to address global challenges such as the climate crisis, pandemics, and food security. They also serve as indicators that a transformation is underway in the way countries interact with each other, resulting in a shift in the economic, political, and strategic center of gravity. In this context, the United States has unleashed a global hybrid war as a desperate attempt to defend and maintain its hegemonic position, which once appeared unshakable in the postwar world. To this end, it has targeted China, as the latter represents its main threat in the economic and scientific-technological order. From this perspective, tensions between the United States and China have significantly deteriorated since the Republican administration of President Donald Trump. Beginning in 2017, his policy took on an aggressive stance toward China, manifesting through a trade war and economic attacks aimed at preserving U.S. global hegemony. This demonstrates that, in response to a process of decline already underway, nationalist and protectionist efforts intensified in the U.S., with policies targeting some of the emerging pillars of the crisis-ridden world order—China being a primary example. Under the administration of Joseph Biden, the focus shifted toward competition, emphasizing the commitment to protect U.S. sovereignty from potential Chinese threats. A significant shift in U.S. foreign policy toward Taiwan became evident with the approval of arms sales to Taiwan in August 2023, which escalated tensions in the region (Collective of Authors). Furthermore, in recent years, the United States has increasingly worked to generate geopolitical and geoeconomic motivations aimed at fostering tensions between China and Russia, potentially sparking conflict between the two. It has strengthened alliances with neighboring countries of these powers—most notably Taiwan and Ukraine—which has triggered concerns and tensions in both nations. A containment policy has also been deployed, including the imposition of trade barriers and tariffs on Chinese products; restricting Chinese companies’ access to U.S. technology and markets; and promoting the diversification of supply chains to reduce dependence on China. Nevertheless, the ongoing sanctions and restrictions have only served to reaffirm the shared survival interests of both powers, strengthening corporate ties and relations between them. These actions also reflect the growing concern among U.S. power groups over the decline of their hegemonic dominance. The Emergence of China and Its Role in the Transition Toward Multipolarity In a previous article titled "The Synergy Between Economy and Environment in China Through the Achievement of the Sustainable Development Goals," (‘La sinergia entre economía y medio ambiente en China mediante la consecución de los Objetivos de Desarrollo Sostenible’) the process of socioeconomic transformations experienced in the People's Republic of China over the past decade was discussed. These transformations have been primarily aimed at revitalizing the nation in preparation for its centenary in 2049. This strategy is rooted in aligning the Centenary Goals with the Sustainable Development Goals (SDGs) set for 2030, under the leadership of the Communist Party and the momentum driven by President Xi Jinping. The results of this strategy have had an impact not only on the Asian Giant itself—now a decisive actor in the Asian region—but also on the international order as a whole. As a result, China has emerged as a powerful rising power, with promising prospects for further elevating its development standards. This is backed by sustained GDP growth, averaging between 6% and 8% annually, indicating a robust economy. In addition, China holds vast foreign exchange reserves, granting it economic stability and the capacity to withstand potential external shocks. It also invests heavily in modern infrastructure and cutting-edge sectors such as artificial intelligence, 5G technology, and renewable energy—all of which enhance its competitiveness and lay the groundwork for long-term sustainable growth (Lagarde, CH). Nonetheless, China has also had to confront significant challenges in its gradual and progressive approach to the desired development model. Among these is the environmental cost associated with its rapid economic growth. For instance, China still experiences high levels of greenhouse gas (GHG) emissions, along with air, water, and soil pollution. In response, measures have been implemented such as the establishment of a national monitoring network and the replacement of coal heating systems in Beijing. Efforts have also been made to purify water resources polluted by industrial processes, and imports of solid waste have been reduced to help decontaminate soils affected by industrial and agricultural activities (González, R., 2023). In general, the development of renewable energy and a circular economy model is being promoted to enable a gradual transition toward a green economy, grounded in the concept of an ecological civilization. For this reason, China’s new era is committed to scientific and technological innovation as a means of driving economic growth that is both sustainable and capable of ensuring a higher quality of life for its population. This, in turn, leads gradually toward a new model of political leadership and economic management. In this regard, Jin Keyu, Professor of Economics at the London School of Economics and Political Science (LSE), has stated that “trillions of dollars of investment are needed for the global green transition, and China is going to play an essential role in that transformation” (Feingold, S., 2024). Based on the aforementioned elements, various authors such as Dr. C. Charles Pennaforte, Dr. C. Juan Sebastián Schulz, Dr. C. Eduardo Regalado Florido, among others, have indicated that the millenary nation represents a threat to the hegemony held by the United States since World War II. Consequently, it is recognized that a process of hegemonic crisis and transition is currently underway, with the Asia-Pacific region emerging as the center of gravity of the global power, thereby contributing to the multipolar transformation of the International System. The authors of “Is China Changing the World?” argue that “market socialism with “Chinese characteristics” must gradually and more clearly diverge from capitalism if it is to embody a genuinely alternative path for all of humanity.” In pursuit of this goal, China bases its policy of peaceful coexistence on five fundamental principles:Respect for sovereignty and territorial integrity, regardless of a country's size, power, or wealth. Mutual non-aggression Non-interference in the internal affairs of other countries, acknowledging that each nation has the right to freely choose its own social system and path of development. Equality and mutual benefit Peaceful coexistence. (Herrera, R.; Long, Z.; and Andréani, T., 2023) The rise of China as a major international power under these principles has been consolidating since 2012 under the leadership of Xi Jinping and the Communist Party of China (CPC), gaining particular momentum from 2020 to the present. Thus, China has not only become the leading power within the Asian regional balance but has also expanded its presence across Europe, Africa, and Latin America—primarily through loans, investments, and multilateral cooperation initiatives such as the Forum on China-Africa Cooperation (FOCAC) in Africa and the China-CELAC Forum in Latin America. In addition, China has positioned itself as a leader in several sectors, and it is projected that its economy may surpass that of the United States, increasing its Gross Domestic Product (Rodríguez, L., 2022). It has also undergone a process of opening up, energizing both its international trade and its overall foreign relations, all under the control of the Government and the Party. This, combined with its rise and development initiatives, has made China a focal point of interest for many countries within the International System seeking to jointly advance projects based on cooperation, the principle of shared advantage, and multilateralism. In this regard, the white paper "China and the World in the New Era," published by the Central Committee of the Communist Party of China in 2019, states: “The world is moving rapidly toward multipolarity, diverse models of modern development, and collaboration in global governance. It is now impossible for a single country or bloc of countries to dominate world affairs. Stability, peace, and development have become the common aspirations of the international community.” (People’s Republic of China, 2019. Quoted in Schulz, J. S., 2022) Undoubtedly, this rise has become a source of concern for U.S. power groups, which have increasingly applied geostrategic pressure. Notably, the United States has strengthened military alliances with India, Japan, and Australia in an effort to encircle China and attempt to control or obstruct its maritime routes—this also being a manifestation of the intensification of the imperialist arms race. Nonetheless, China has maintained its development strategy and, as part of it, has strengthened its diplomatic network and its relations with multiple countries across all world regions. For all these reasons, China has become the most dynamic center of the global economy. Notably, it went from representing 4% of global GDP in 1960 to 16% in 2020—undeniable evidence of rapid economic growth. Moreover, it has become the world’s largest exporter of goods and also the leading importer, establishing itself as a major industrial power. In this regard, United Nations data reveal that China leads global industrial production, accounting for 30% of the total. This figure surpasses other industrial powers such as the United States (16%), Japan (7%), Germany (5.7%), and South Korea (3.2%) (Schulz, J. S., 2022). In addition, China has remained the world’s leading manufacturing power for approximately 15 consecutive years, according to statements from the Ministry of Industry and Information Technology at the beginning of this year. This sector alone has contributed over 40% to overall growth. Likewise, in 2024, China experienced a significant increase in foreign investment, reflecting its interest in strengthening international cooperation for development. Efforts are also underway for urban renewal in 2024, with around 60,000 projects being implemented across various cities. These initiatives are primarily aimed at transforming underdeveloped neighborhoods and creating smarter urban areas (Embassy of the Republic of Cuba in the People's Republic of China, 2025). In this regard, the following graphs illustrate the value of China’s international trade during the 2016–2024 period, highlighting a strong presence of exports compared to imports. A second chart shows China's global export share, where it holds a dominant position.   Thus, China has risen as a center of power in the international system, with leadership not only in the economic domain but also in science and technology. At the same time, it has promoted a series of investments and a process of internationalizing its national currency. Accordingly, the Asian Giant offers an alternative model of development—one that is more comprehensive and sustainable—allowing it to propel the new phase of Chinese development. This phase aims not only to fulfill the dream of national rejuvenation but also to ensure the survival of its unique political, economic, and social model. Nevertheless, the significant challenges of sustaining growth cannot be overlooked. From this perspective, experts believe that new avenues of growth will be necessary for China to maintain the trajectory it has been experiencing. Specifically, the country must continue expanding its industrial sector while strengthening areas such as artificial intelligence, digital financial services, and green technologies (Feingold, S., 2024). It is also important to highlight the projected continuity and leadership of the Chinese government, with Xi Jinping identified as a key figure in the implementation of the Sustainable Development Goals (SDGs) in China, in conjunction with the socioeconomic transformation strategy toward the 2049 centenary. This has been pursued through the defense of multilateralism, economic openness, and international integration and cooperation in support of global development. Conclusions In light of the above, a decline in U.S. hegemony can be observed, even though this process is not linear—nor is it certain whether any single power or coalition has come to occupy a hegemonic position. What is clear, however, is the existence of a trend toward multipolarity, driven by emerging powers and the strategic ties they are establishing. This is giving rise to a non-hegemonic reconfiguration of power blocs, which are building a multilateral and multipolar institutional framework. It can also be affirmed that China has become the most dynamic center of the global economy. This has been supported by its growth strategy focused on industrialization, digitalization, innovation, productivity, expansion, and internationalization of its development model—while maintaining a strong emphasis on environmental sustainability. A range of key initiatives and development projects have been implemented to support the country's rise, consolidating its role in the multipolar reconfiguration of the International System. All of this has been essential in driving China’s new phase of development and contributing to the broader process of multipolar transformation. Undoubtedly, China’s rapid ascent represents a significant challenge to the International System, as it reflects a shift in international relations and a transformation in the distribution and hierarchy of global power. Notes [1] It is important to clarify that the so-called Global South should not be equated with the Third World, as the distinction between the First and Third Worlds is primarily based on economic and technological differences, which do not align with the current circumstances of the International System of States. In contrast, the term Global South emerges from a new geopolitical perspective that arose in the post–Cold War context, driven by the need to promote South-South cooperation. 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Brazil's BRICS+ presidency ahead of the summit in Rio de Janeiro Brazil is using its BRICS+ presidency in 2025 to promote a more inclusive and sustainable world order as a pragmatic mediator for developing and emerging countries and to preserve its independence in foreign policy. For Europe, this presents both challenges due to the growing heterogeneity and independence of the BRICS+ group, as well as opportunities for a strategic partnership with Brazil, for example through the EU-Mercosur agreement and joint projects in the areas of climate, health, and technology. It is crucial that Europe recognizes Brazil as an equal partner in order to jointly set global standards and actively shape the international order. The Brazilian BRICS+ presidency With the assumption of the BRICS+ presidency in January 2025, the first following the expansion of the alliance, Brazil is once again assuming a vital role on the international stage after the G20 presidency in the previous year. Under the motto "Strengthening cooperation in the Global South for more inclusive and sustainable governance", Brazil is setting clear priorities: global health cooperation, trade and finance, climate change, regulation of artificial intelligence, multilateral peace architecture and institutional development of the BRICS+ bloc. Brazil is advancing the latter, for example, through events such as the 11th Parliamentary Forum in Brasília in June 2025, which aims to deepen political dialog and parliamentary cooperation and promote the democratic legitimacy of the bloc. Between February and July, the Brazilian Presidency set a broad agenda with over one hundred ministerial and technical meetings. The selected topics reflect the interests of many emerging and developing countries and illustrate Brazil's claim to function as a bridge builder between the so-called "Global South" (a controversial term due to its vagueness and homogenization) and the established industrialized countries. Foreign policy pragmatism as a leitmotif Brazil's foreign policy has historically been characterized by pragmatism and a clear focus on national interests. For decades, the country has pursued a strategy aimed at preserving the greatest possible autonomy and not subordinating itself to the priorities of the major powers. This attitude is currently particularly evident: Brazil has not joined the Chinese Belt and Road Initiative and voted against the inclusion of Nicaragua and Venezuela in the BRICS. Brazil's great dependence on its most important trading partner China is now also being viewed critically in parts of Brazilian politics and diplomacy. However, the government in Brasília continues to strictly refuse to be pigeonholed or categorized into a fixed camp, instead opting for flexibility and openness - a strategy that ensures maximum freedom of action. In contrast to countries such as Mexico, which is more closely tied to the USA due to its geographical location and economic ties, Brazil can balance its foreign policy between different centers of power and represent its interests with confidence. Heterogeneity and dynamics of the BRICS+ The BRICS+ group is anything but homogeneous. The member states are democracies, autocracies and dictatorships and disagree on a variety of issues. For example, whether BRICS+ should function as an anti-Western force or serve as a platform for a reformed, more inclusive world order. The refusal of President Xi Jinping and President Vladimir Putin to attend the BRICS+ summit in Rio de Janeiro on July 6-7 highlights the internal tensions and heterogeneity of the alliance of states. If Putin could take part in the summit virtually, there is speculation in Brasília about the reasons for Xi's refusal. Is the Chinese partner annoyed by Brazil's rejection of the Belt and Road Initiative or are they bothered by India's prominent participation in Rio de Janeiro? Chinese voices justify Xi's absence with the fact that he has already met President Lula twice in less than a year, once at the G20 summit in Brazil in 2024 and most recently at the China-CELAC summit in Beijing in May. The Egyptian government also recently announced that President Al-Sisi will not be traveling to the summit due to the situation in the Middle East. Other high-ranking guests such as Mexican President Sheinbaum and Turkish President Erdoğan have also announced that they will not be traveling to Rio. An Iranian delegation has not yet been confirmed. On the one hand, the absence of the two heavyweights, Xi and Putin, could weaken the international appeal and political weight of the meeting, as the media attention and the signal effect of such a summit depend on the presence of the heads of state. On the other hand, this constellation opens up new scope for action, especially for those countries that are not clearly anti-Western - above all Brazil, India, and South Africa. These countries could use the opportunity to set their own priorities and campaign for a more pragmatic, more open orientation of the BRICS+. Brazil in particular, which traditionally pursues an interest-oriented and pragmatic foreign policy, sees itself in the role of a mediator who does not want to commit the bloc to a confrontation with the West. Rather, Brazilian diplomacy is concerned with using BRICS+ as a platform for reforming the international order without submitting to the priorities of individual major powers. The fact that Brazil has neither joined China's Belt and Road Initiative nor supported Venezuela's admission to the BRICS underlines this independent and active course of non-alignment. Within Brazilian politics, academia and diplomacy, the increasing heterogeneity of the BRICS+ group is being increasingly criticized. Although the expansion to include new members such as Indonesia and Ethiopia has increased the global reach, it has also exacerbated internal conflicts of interest. There are voices in Brasília who fear that the bloc's coherence and ability to act could suffer as a result of this diversity. At the same time, however, diversity also offers opportunities for Brazil: it enables Brazil to distinguish itself as a constructive force and promote dialog between different political and economic systems. However, it is questionable whether the current government under President Luiz Inácio Lula da Silva (PT) will be able to take advantage of this opportunity. Multipolarity, geography and new zones of influence The multipolar world order that is currently emerging following the end of US unipolar dominance is tending towards instability. Several centers of power are competing for influence, the complexity of international relations is increasing, and the risk of conflict is rising. In the course of these developments, the BRICS+ are also gaining relevance. We are experiencing a time in which zones of influence such as those actively pursued by the USA and Russia are once again gaining in importance - be it in Eastern Europe, the Middle East or in North and South America. In this environment, Brazil is pursuing a "hedging" strategy: it is skillfully balancing between the major powers without committing itself, thus preserving its foreign policy autonomy. A balancing act that is becoming increasingly difficult, as demonstrated by the recurring critical questions from Europe about Brazil's BRICS+ membership. Brazilian diplomatic pragmatism is difficult to reconcile with the European idea of a value-based multilateral world order and is therefore difficult for Europeans to understand. Brazil's geographical location - as the largest nation in South America, with access to the Atlantic and as a bridge between North and South - also has a major influence on its foreign policy stance. Geography plays a key role in understanding certain political actions. Its distance from the global centers of conflict allows Brazil to take on a moderate, mediating role. While many conflicts in other parts of the world are dominated by geopolitical tensions, Brazil can often act more neutrally and constructively. Brazil's wealth of raw materials and the associated potential, as well as its special geographical and strategic position, make it an important player in international diplomacy and a key player for Europe. Resources, narratives, and soft power In the 21st century, power is no longer measured exclusively in terms of military superiority. Rather, access to natural resources - especially rare earths -, economic innovation and the ability to shape global narratives are at the heart of the modern exercise of power. Soft power, i.e., influence through diplomacy, cultural exchange, and the targeted shaping of narratives, has become a central instrument of international politics. A striking example of the importance of soft power was demonstrated during the COVID-19 pandemic: China and Russia made targeted use of vaccine diplomacy to expand their influence in Latin America. The BRICS alliance also gained in importance and stood for cooperation in the so-called "Global South". Europe, but also the USA, on the other hand, was initially perceived in the region as cautious and concerned with its own advantage. The EU's so-called "vaccine nationalism" at the beginning of the pandemic had a lasting impact on the trust of many countries in European solidarity. This experience is still present in Latin American memory today. Brazil has made great progress in its own vaccine production in recent years and has established itself as a regional player in the healthcare sector. Nevertheless, the country is still dependent on international supply chains, particularly for the procurement of precursors and technologies. The opening up to China and Russia in the healthcare sector as a result of vaccine diplomacy has created additional opportunities for these players to strengthen their presence and influence in Brazil and the region. Opportunities for a strategic partnership with Europe It is precisely against this backdrop that Europe must seek new opportunities to put its relationship with Brazil on a future-oriented and partnership-based footing. The EU has considerable strengths: economic and technological innovation, diplomatic experience, and the ability to set international standards. With the "Strategic Compass", the EU has further developed its foreign policy instruments and focuses on the four guiding principles of "Acting, Securing, Investing, Partnering". However, in order to be successful in global competition, Europe must act faster and be prepared to meet Brazil on an equal footing and take it seriously as an equal partner. The EU should make targeted use of its economic, technological, and diplomatic strengths for sustainable and strategic cooperation. This includes the promotion of joint research projects, technology and science transfer and support for the development of local production capacities - particularly in the healthcare sector, but also in areas such as sustainable raw material extraction, digitalization, and green transformation. Especially at a time when the reliability of the USA as a partner is being questioned for good reasons, Europe and Germany can score points with reliability, transparency, and long-term commitment. In addition to the EU-CELAC summit in November 2025, another important instrument in this context would be to hold renewed German-Brazilian government consultations before the Brazilian presidential and parliamentary elections in the fall of 2026. The conclusion of the EU-Mercosur agreement, cooperation on renewable energies, the promotion of sustainable agriculture, the deepening of cooperation in the defense industry and the co-design of global health standards are fields in which Europe and Brazil can jointly set standards. At the same time, it is essential for the EU to strengthen its own raw material security and secure access to key technologies and rare earths in order to maintain its own ability to act. In the long term, a close partnership with Brazil offers the EU and Germany the opportunity not only to pursue economic interests, but also to jointly develop global standards and actively help shape, reform and strengthen the rules-based international order. However, this requires Europe to respect Brazil as an independent, equal player and to recognize and consider the country's specific interests and experiences. The latter also applies equally to the other side. Symbolic gestures such as Brazilian President Lula's participation in the military parade in Moscow on May 9 to mark the 80th anniversary of the end of the war are detrimental to cooperation with Europe. They hinder trusting, forward-looking cooperation between Europe and Brazil, which could bring great benefits to both sides and contribute to stabilizing the multilateral world order. Outlook: COP30 and Brazil's global agenda In November 2025, Brazil will host the UN Climate Change Conference COP30 in the Amazon region in Belém in the final phase of its two-year leadership role - a further step towards positioning itself as a global player in climate and environmental policy and acting as a mediator between the so-called "Global South" and the industrialized nations. The Brazilian agenda focuses on sustainable development, the protection of biodiversity and the promotion of renewable energies. This underlines Brazil's claim to assume not only regional but also global responsibility. The COP30 offers Europe and Brazil a further opportunity to intensify their cooperation on climate protection and related issues and to provide joint impetus for a more sustainable world order. Conclusion The emerging multipolar world order is more unstable and prone to conflict than the unipolar phase before. Brazil acts skillfully in the field of tension between the great powers and uses its resources and diplomatic flexibility to secure national interests. Europe should recognize this reality and actively shape its partnership with Brazil to its own advantage. The influence of the BRICS+ alliance should be viewed soberly - neither overestimated nor underestimated, but with a realistic assessment of its importance and potential. Only through strategic engagement and a little more pragmatism can the EU and Germany safeguard their interests and contribute to stabilizing an increasingly fragmented world. The BRICS+ summit and the upcoming COP30 are touchstones for Brazil's and Europe's ability to help shape a new, complex world order and act on an

Abstract The transatlantic relationship is undergoing a period of critical recalibration, marked by the return of a more transactional US administration and a world order moving towards multipolarity. The return of Donald Trump to the helm of the White House with an ‘America First’ doctrine raises serious questions about US involvement in the transatlantic alliance. President Trump’s repeated claims that the EU was set up to ‘screw’ the US reflect both that his administration is unwilling to engage productively with the EU and that it distrusts multilateral forums, preferring bilateral, nation-to-nation contacts. This article seeks to bring clarity to the future US–EU relationship by identifying some of the points of contention and offering a perspective on how the transatlantic partnership can move forward constructively. KeywordsTransatlantic relations, EU–US relations, Trump administration, EU, Bilateral relations, Multipolar world order Introduction Three years after Russia’s full-scale invasion of Ukraine, a new axis of power is taking form, led by Russia and China and supported by North Korea, Iran and Belarus. This shift brings a profound transformation within the global balance of power and is a direct threat to the liberal international world order. In the midst of this geopolitical recalibration, the return of Donald Trump to the helm of the White House with an ‘America First’ doctrine poses serious questions about US engagement with the transatlantic alliance. There are growing worries about the US’s willingness to continue to honour its Article 5 commitments within NATO and maintain an active role in the collective defence of Europe, but also about the role of the US as a supporter of Ukraine and the liberal multilateral rule-based system. State of play in the EU–US partnership During the first Trump administration, at the state funeral of former US president George H. W. Bush, the EU’s ambassador to the US, David O’Sullivan, was asked to stand at the back of the line-up to pay his respects, breaking diplomatic protocol (Knigge 2019). He politely acquiesced, but in the days that followed it came to light that during the first Trump administration, the US Department of State had downgraded the diplomatic status of the EU in the second half of 2018 without informing the EU Delegation in Washington (Smith 2019). Beyond the failure to communicate this important diplomatic status change, which was not well received in Brussels, and in addition to the protocol issue of having a long-serving foreign ambassador downgraded on the spot at a state funeral, this sent a clear message: the Trump administration does not respect the EU, and nor does it view the Union as an interlocutor. On many occasions during his first administration, Trump’s officials clashed with the EU. In a major foreign policy speech in Brussels, then–Secretary of State Mike Pompeo openly questioned the continued value of the EU and urged European countries to reassert their national sovereignty (Pompeo 2018). As the second Trump administration begins its work with unprecedented vigour, so far the EU has hardly featured as a consideration for the president or his top officials. At the time of writing, the nominated US ambassador to the EU, Andrew Puzder, has not yet testified (Singh and Jones 2025). In his early remarks as secretary of state, Marco Rubio has hardly mentioned the EU at all. On 29 January, the first call between High Representative Kaja Kallas and Rubio took place, alleviating some concerns about the distinct lack of US–EU dialogue taking place due to the change in administration (Liboreiro 2025). However, at the 2025 Munich Security Conference, the new US administration went beyond the usual call for European allies to spend more on defence. Vice-President JD Vance drove home the seismic shift underway in the US commitment to European defence and upended decades of policy (Quinville 2025). Moreover, on the European side, the attempts by some members of the Trump administration to support far-right candidates in Europe (as done by Elon Musk and Vance in Germany and Romania) bring a new level of discomfort and mistrust, as it looks like parts of the administration and Trump’s brand of conservatism, colloquially known as ‘Make America Great Again’ (MAGA), want to export their domestic cultural wars to Europe, thus attacking the core shared value of the transatlantic partnership: liberal democracy. A divorce or just a rough patch in transatlantic relations? Over the past seven decades, successful cooperation between the US and European institutions has helped to build the liberal multilateral world order and to uphold the UN Charter by promoting global stability and prosperity. With a combined population of nearly 800 million people, the US and the EU have the most integrated economic cooperation in the world, accounting for 43% of global GDP and 30% of global trade in goods and services (European Council 2025). President Trump’s repeated claims that the EU was set up to ‘screw’ the US reflect the Trump administration’s unwillingness to engage productively with the EU and its distrust of multilateral forums, and hence its preference for bilateral, nation-to-nation contact. The administration’s growing distrust of the EU also reflects the changing public perception of the EU among segments of the American public, such that 29% of Republicans view the EU as ‘unfriendly’ or ‘hostile’, up from 17% last year, and negative perceptions of Europe among Democrats are also slowly rising (The Economist 2025). This represents an inward turn in American society as politics becomes increasingly polarised. On the other hand, favourable attitudes among Europeans towards the US have fallen below 50%, with only around a third of Germans (32%) and the French (34%) having a positive view of the current American administration, with the least favourable views being held in Denmark, where only 20% approve (Britton 2025). Less than 100 days into his second term, at the time of writing, Trump has already broken long-standing norms and practices in US–European relations. Vance’s critical discourse at the Munich Security Conference, which harshly attacked European values, brought a major departure from traditional diplomatic language. The US vote alongside Russia and North Korea, and against traditional allies, on a UN resolution condemning Russian aggression in Ukraine and calling for the return of occupied territory to Kyiv further deepened concerns (Landale and Jackson 2025). Additional actions, such as the controversial Oval Office meeting between the Trump administration and Ukrainian President Volodymyr Zelensky, the temporary suspension of intelligence and military assistance to Ukraine, the exclusion of Europeans from Ukrainian peace negotiations, and the disproportionate and unjustified tariffs on the EU have heightened European anxiety. These moves have raised fears of a possible end to the transatlantic partnership and a wider US retreat from global leadership. For most Europeans, the second Trump administration appears to be strategically prepared, driven not only by revenge in domestic politics, but also by a sense of retribution in foreign policy. But while distrust has never been higher, it would be a mistake to take the path of severing the relations between the US and the EU. The Euro-Atlantic partnership has suffered similar lows in the past, from vastly different perspectives on the US invasion of Iraq, the Obama administration’s pivot to the Indo-Pacific and the botched withdrawal from Afghanistan. Points of tension and contentionTech On tech regulation, storm clouds are already gathering as Trump has lashed out at the EU for regulating big tech companies (Doan and Stolton 2025). During the transition, the new Trump administration has been noted for the active participation of several tech CEOs. This was most evidently on display during Trump’s inauguration, which saw the likes of Mark Zuckerberg (Meta), Jeff Bezos (Amazon) and Elon Musk (Tesla), as well as other billionaires from around the world (including TikTok’s CEO) gather to welcome in the new administration (Kelly 2025). These tech CEO supporters, not usually as prominently on display in American politics, are flocking to the new administration, which has pledged massive tax cuts for billionaires, the promotion and deregulation of cryptocurrencies, and the removal of restrictions on free speech and fact-checking (Samuel 2025). The EU’s attempts to regulate big tech companies under this new administration will be even more difficult, given their close proximity to and influence on the second Trump presidency. Energy Another likely area of divergence between the US and the EU is in their approaches to energy policy and climate policy. Trump has pledged to ‘drill baby drill’, promising to fund more fossil fuel extraction and curbing green and renewable projects. He has openly called climate change a hoax and ended US participation in the Paris Climate Agreement. Meanwhile, the EU and its member states continue to invest heavily in renewables, with clean energy sources accounting for 70% of the bloc’s electricity demand in 2024 (Vetter 2025). The US, already trailing in wind power and investment in renewables, now risks falling irrevocably behind most of the developing world in clean energy production. Trump might find less of a market for fossil fuels in the EU as a result of its heavy investment in renewables, instead having to turn to other markets. Trade and tariffs On the campaign trail, Trump vowed that as president he would impose tariffs on everyone from China to neighbours, Mexico and Canada, to allies such as the EU. Although the initial tariffs placed on Mexico and Canada were swiftly lifted, a new wave of tariffs of 25% on foreign steel and aluminium was announced on 11 February. This move mirrors that of his first administration (Wiseman 2025). The EU was swift to respond, announcing a slew of counter-measures targeting iconic US products such as jeans, bourbon, peanut butter, whiskey and motorcycles. European steel companies could see as much as 3.7 million tons of steel exports lost as a result of US-imposed tariffs. Together, as noted above, the US and the EU account for about 30% of global trade, with deeply intertwined production and supply chains. However, this does not appear to be part of the Trump administration’s reasoning behind its decision to impose ‘reciprocal’ tariffs of 20% on almost all other EU products as part of its Liberation Day plan. The proposed tariffs could affect around 70% of EU exports to the US, worth around €532 billion ($585 billion) in 2024, with potential tariffs on copper, semiconductors, pharmaceuticals and timber still on the cards (Blenkinsop 2025). As the trade wars begin again, US–EU trade and economic relations will undoubtedly face difficult times over the next four years and risk undermining or limiting cooperation in other areas as a result. Responding to Trump’s announcement, President of the European Commission Ursula von der Leyen, astutely summed up: ‘The global economy will massively suffer. Uncertainty will spiral and trigger the rise of further protectionism. The consequences will be dire for millions of people around the globe’ (European Commission 2025). The EU, in addition to planning and implementing counter-measures to Trump’s tariffs, has to walk a difficult tightrope to maintain its investment ties (Casert 2025). The Arctic Trump’s approach to the Arctic in the days leading up to the transition and in his first three months, most notably his refusal to promise not to invade Greenland by force, if deemed necessary (Kayali 2025), sparked widespread condemnation from European leaders. Trump raised the idea of purchasing Greenland from Denmark in 2019 during his first term, and reasserted his intention to acquire the vast island, rich with rare earth minerals, on a fiery phone call with Danish Prime Minister Mette Frederiksen. In response, the Danish premier garnered support among European heads of state. However, Trump’s focus on Greenland could have profound implications for the balance of power in the Arctic region. Although the Arctic is increasingly discussed in geopolitical terms, in part due to Russia’s and China’s interests in new shipping routes, it remains a zone of peace. The implications of potential NATO infighting over Greenland, and the possibility that this could accelerate Greenland’s independence, could work to China’s or Russia’s advantage and risk disrupting the balance of power in the Arctic region that has allowed peace to prevail. Defence spending The Trump administration’s renewed push for European NATO allies to spend at least 5% of their GDP on defence has reignited tensions over transatlantic burden-sharing. During his first visit to a NATO defence ministers’ meeting, US Secretary of Defense Hegseth made it clear that the US no longer sees an indefinite American presence in Europe as guaranteed (Erling 2025). While these pressures reflect Washington’s frustration over decades of unequal defence spending, they also risk undermining alliance cohesion by demanding an unrealistic increase in European defence budgets. Most European states have already significantly increased their military spending, jointly spending €326 billion on defence in 2024, an increase of 30% since 2021 (European Defence Agency 2024). And the European Commission’s recently launched ReArm Europe/Readiness 2030 initiative proposes an additional €800 billion to help EU member states fill their defence gaps and increase their military production and capacity (Gomez 2025). However, calling for a sudden escalation to 5% of GDP overlooks the political, economic and social constraints within Europe and could provoke backlash rather than cooperation. A more realistic target of 3% to 3.5% of GDP offers a more balanced and politically realistic path, consistent with strengthening NATO’s European pillar, and could be discussed as a new NATO defence commitment at the upcoming Hague Summit this summer. EU defence market The EU is developing its European Defence Technological and Industrial Base in response to the challenging new security and geopolitical reality. A key focus within the plan is strengthening the European internal market for defence, which remains heavily underdeveloped and dependent on non-EU suppliers, notably the US, which accounts for more than half of the EU’s defence procurement. The European Defence Industrial Strategy, launched in 2024 by the European Commission, proposes some ambitious objectives: by 2030, at least 50% of member states’ defence acquisitions should go to the European defence industry, rising to 60% by 2035, and 40% of these procurements should be through collaborative projects (European Commission 2024). Nevertheless, this strategy is not without challenges, as some EU member states, particularly the Eastern European countries, still favour US suppliers and see buying American defence systems as a way to foster security ties with Washington. The return of Trump, along with signs of US disengagement from Europe, has led to a renewed debate within the EU about reducing reliance on American defence capabilities and investing more in equipment ‘Made in Europe’. At the same time, the evolving US position has complicated transatlantic defence industrial cooperation. While Rubio has recently stressed the importance of continued American participation in European defence procurement, the latest EU proposals to prioritise the European defence industry have raised concern in Washington (Cook and Croucher 2025). Any move to limit access for American defence companies might provoke a political backlash, even as European leaders become increasingly worried about the credibility of the US defence commitments. Recent events such as the politicisation of US military aid to Ukraine and the unpredictability of future armament deliverables have further shaken European confidence. But despite the growing uncertainty, EU countries should remain interested in cooperation with the US, not exclusion. The challenge now is to strike a balance: to build a more autonomous and resilient European defence market while maintaining a constructive and cooperative relationship with the US. Ukraine peace negotiations The peace negotiations for Ukraine are becoming a major point of divergence between the US administration under Trump and its European allies. Trump’s main goal is to quickly end the conflict in Ukraine and position himself as a successful deal maker on the global stage. So far, his administration has shown a willingness to make significant concessions to Russia, often unilaterally and without securing reciprocal commitments from Moscow. This approach might be part of a broader strategy that includes weakening Russia’s alliance with China, securing American access to Ukrainian rare earth resources and continuing a larger US strategic pivot towards the Indo-Pacific (Mills 2025). So far, this conciliatory ‘deal making’ has caused anxiety among European leaders, who fear that a hasty or unbalanced peace agreement might lead to a forced Ukrainian capitulation and would undermine long-term European security and stability. Therefore, European countries are insisting on being part of the discussions on defining what a just, long-standing and sustainable peace should look like, a peace that secures Ukraine’s sovereignty and deters further Russian aggression on the country or continent. In parallel, European countries are formulating their own vision for a lasting peace, independent of American leadership. Recent discussions and meetings led by the UK and France are proposing a ‘coalition of the willing’ that would send 10,000 to 30,000 troops to Ukraine to enforce a future ceasefire (O’Sullivan and Khatsenkova 2025). But current plans face significant obstacles: disagreements among European states over troop commitments and mandate, fears of escalation in a direct conflict with Russia and a lack of critical defence enablers that only the US can provide. While countries such as the UK, France and Sweden are considering ‘boots on the ground’ in Ukraine, Eastern European states, notably Poland, remain reluctant, preferring to commit to logistical roles rather than direct engagement. Moreover, European allies are seeking explicit US backstop support (logistical, intelligence and political) to enhance the credibility of the deterrence of these peacekeeping forces against future Russian aggression. The way in which the Ukraine peace negotiations unfold could be a source of further tension between the US and European partners in the months and years to come. A way forward The transatlantic relationship is undergoing a period of critical recalibration, marked by the return of a more transactional US administration and a world order migrating towards multipolarity. A possible way forward in Euro-Atlantic relations is to adopt a pragmatic approach that preserves cooperation where possible while accepting a more interest-based partnership. Paradoxically, as the US pivots towards the Indo-Pacific to counterbalance China’s global rise, this may offer a new avenue for transatlantic rapprochement. Both the US and the EU increasingly recognise the need to address China’s more assertive economic and geopolitical behaviour, and both see the growing socio-political and security threats from the rise of this axis of upheaval formed of China, Russia, Iran and North Korea. For Europeans, navigating this increasingly unstable geopolitical landscape will require clarity, political maturity and a greater sense of strategic responsibility. The EU must continue to invest in its strategic autonomy—not to disengage from the US, but to become a more equal and reliable transatlantic partner. The coming months will be vital in charting a new course for transatlantic cooperation, one that emphasises increased European defence investment, a coordinated approach to the Russian and Chinese threats, the need for a deeper EU–NATO cooperation, a responsible resolution to the war in Ukraine, and a more balanced EU–US partnership. As such, European leaders will need to make a concerted effort to build bridges with the Trump administration by focusing on areas of convergence and mutual strategic interest. What lies ahead is a period of repositioning, a reordering of the transatlantic relationship from one rooted primarily in shared norms, values and principles towards a more pragmatic and transactional partnership based on common interests and careful management of differences. While challenging, this transformation could lead to a more resilient and mature transatlantic alliance, shaped by partners on an equal footing, capable of adapting to the demands of an unstable and unpredictable multipolar world order. ReferencesBlenkinsop P. (2025). EU seeks unity in first strike back at Trump tariffs. Reuters, 7 April. https://www.reuters.com/markets/eu-seeks-unity-first-strike-back-trump-tariffs-2025-04-06/. Accessed 7 April 2025.Britton H. (2025). 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Trump nominates former CKE Restaurants CEO Puzder as US ambassador to EU. Reuters, 23 January. https://www.reuters.com/world/us/trump-nominates-former-cke-restaurants-ceo-puzder-us-ambassador-eu-2025-01-23/. Accessed 1 February 2025.Smith K. E. (2019). The Trump administration downgraded the E.U.’s diplomatic status in Washington. That’s going to hurt. The Washington Post, 8 January. https://www.washingtonpost.com/news/monkey-cage/wp/2019/01/08/the-trump-administration-is-downgrading-the-e-u-s-diplomatic-status-in-washington-thats-going-to-hurt/. Accessed 17 January 2025.The Economist. (2025). Schooled by Trump, Americans are learning to dislike their allies. 31 March. https://www.economist.Com/graphic-detail/2025/03/31/schooled-by-trump-americans-are-learning-to-dislike-their-allies. Accessed 1 April 2025.Vetter D. (2025). As Trump dumps clean energy, fossil fuels lose their grip on Europe. Forbes, 23 January. https://www.forbes.com/sites/davidrvetter/2025/01/23/as-trump-dumps-clean-energy-fossil-fuels-lose-their-grip-on-europe/. Accessed 13 February 2025.Wiseman P. (2025). Trump once again slaps taxes on foreign steel, aluminum, a move that proved costly in his first term. The Associated Press, 10 February. https://apnews.com/article/trump-tariffs-steel-aluminum-jobs-mexico-canada-89815eeb12ff28b83f5b855ca44f1820. Accessed 15 February 2025.Corresponding author(s):Ionela Maria Ciolan, Wilfried Martens Centre for European Studies, Rue du Commerce 20, 1000 Brussels Belgium. Email: iciolan@martenscentre.eu

Abstract This paper examines the evolving concept of European Union Strategic Autonomy (EU-SA) within the context of contemporary geopolitical challenges, with a particular focus on EU-Russia and EU-China relations. EU-SA reflects the EU's aspiration to act independently in foreign policy, security, defence, and economic affairs, moving from a rule-taker to a rule-maker in global politics. The study outlines the historical development of EU-SA from 2013 to the present, highlighting key milestones such as the Strategic Compass and the impact of the Ukraine War, which accelerated efforts toward defence collaboration, energy independence, and economic resilience. It explores the transatlantic dynamics, noting growing uncertainties in the U.S. commitment to NATO and the resulting push for a more autonomous European defence posture. Additionally, it addresses the complex EU-China relationship, marked by both cooperation and competition, as well as the strained EU-Russia ties amid ongoing conflict. The paper concludes by questioning the economic feasibility and political risks of deeper EU strategic autonomy, especially regarding security centralisation and Germany's leadership role. Key Words: EU, Strategic Autonomy, Security, Geopolitics, U.S, China, Russia Introduction At the 2025 North Atlantic Treaty Organisation (NATO) Summit in The Hague, member states (Allies) committed to investing 5% of their Gross Domestic Product (GDP) annually in core defence requirements and defence- and security-related spending by 2035. They will allocate at least 3.5% of GDP annually, based on the agreed-upon definition of NATO defence expenditure, by 2035 to resource core defence requirements and meet the NATO Capability Targets. Allies agreed to submit annual plans that show a credible, incremental path to achieving this goal.[1] At the same time, Spain secured a special compromise, committing to meet core requirements with just 2.1% of GDP, making it the only exception to the broader 5% target. Previously, in 2014, NATO Heads of State and Government had agreed to commit 2% of their national GDP to defence spending, to help ensure the Alliance's continued military readiness. This decision was taken in response to Russia's illegal annexation of Crimea, and amid broader instability in the Middle East. The 2014 Defence Investment Pledge was built on an earlier commitment to meeting this 2% of GDP guideline, agreed in 2006 by NATO Defence Ministers. In light of the increase in defence spending, given that 23 out of 32 NATO Allies are EU member states, the idea of European Union strategic autonomy (EU-SA) comes to mind. This paper will explore the issue of EU-SA with a specific reference to EU-Russia and EU-China relations.[2] A Brief History of EU Strategic Autonomy European Union strategic autonomy is an evolving concept that reflects its ambition to act independently in strategically important policy areas, including foreign policy, security, defence, and economic relations. Strong strategic autonomy, according to Barbara Lippert, Nicolai von Ondarza and Volker Perthes, means being able to set, modify and enforce international rules, as opposed to (unwillingly) obeying rules set by others. The opposite of strategic autonomy is being a rule-taker, subject to strategic decisions made by others, such as the United States, China, or Russia.[3] The concept was first prominently discussed in the context of defence in 2013 and has since expanded to encompass a broader range of policy areas. Historically speaking, one can identify numerous phases during which EU-SA evolved. - 2013-2016: During this period, EU-SA focused on security and defence, with initiatives like the Permanent Structured Cooperation (PESCO) and the European Defence Fund, aiming to strengthen the EU's defence capabilities.[4]  - 2017-2019: During this period, the EU-SA shifted its focus to defending European interests in a hostile geopolitical environment, influenced by events such as Brexit, the Trump presidency, and China's growing assertiveness.- 2020: The COVID-19 pandemic highlighted economic vulnerabilities, prompting a focus on mitigating dependence on foreign supply chains, particularly in critical sectors like health and technology.- Since 2021: The scope widened to virtually all EU policy areas, including digital, energy, and values, with terminology evolving to include "open strategic autonomy," "strategic sovereignty," "capacity to act," and "resilience".- 2022: The Ukraine War and Accelerated Implementation. Russia's invasion of Ukraine catalysed concrete actions toward EU-SA, notably in defence, energy independence, and economic resilience. The European Council's Versailles Declaration (March 2022) expressed strong political will to increase EU-SA, calling for collaborative investments in defence, phasing out dependency on Russian energy, and reducing reliance on critical raw materials, semiconductors, health, digital technologies, and food imports.[5] - The Strategic Compass for security and defence policy (endorsed March 2022) outlines a roadmap to 2030, emphasising strengthened EU defence capacities. Among others, it includes: o   Establishment of a strong EU Rapid Deployment Capacity of up to 5000 troops for different types of crises.o   Ready to deploy 200 fully equipped Common Security and Defence Policy (CSDP) mission experts within 30 days, including in complex environments.[6]o   Conducting regular live exercises on land and at sea.o   Enhanced military mobility.o   Reinforcement of the EU's civilian and military CSDP missions and operations by promoting a rapid and more flexible decision-making process, acting more robustly and ensuring greater financial solidarity.o   Making full use of the European Peace Facility to support partners.[7] According to the EU itself, the EU-SA is not a zero-sum game, but rather a sliding scale between complete autonomy and full dependency, with different results for different policy areas. What is more, when compared to the famous Maslow's hierarchy of needs (European Parliament briefing's language), the EU is not only perceived as an economic power, but it is also seen as a normative power. Therefore, the EU is recognised for its core values of democracy, human rights and the rule of law. Ultimately, Maslow's “self-actualisation” could mean the achievement of an EU in which citizens recognise their European identity and which has realised its full autonomous policy potential.[8]   As if this is not enough, the same source introduces the concept of the 360° strategic autonomy wheel, which reportedly illustrates policy areas in which the EU aims for greater strategic autonomy, as well as the connections between them. Mutual influence between policy areas can happen across the wheel, but is particularly strong in adjacent areas. Military action, for example, can cause migration, health is linked to food quality, energy policy influences the climate, and misinformation undermines democracy. The wheel can help to understand links, set priorities and view potential conflicts. More autonomy in the digital green economy will, for example, require vast quantities of “rare earth” materials, making the EU more (instead of less) dependent on imports. Reductions in energy consumption achieved through the digitalisation of the economy (for example, by reducing transport) will be partly offset by the increase in energy consumption by electronic devices and data centres.   Global Context The significance of EU-SA lies in ensuring the EU's political survival and global influence in a multipolar world where its relative power is diminishing. The EU's long-term economic outlook is bleak: its share of global GDP, now at 17% (at current prices), could nearly halve by 2050. According to the World Economic Forum, this economic backsliding not only threatens Europe's ability to fund its social model but also risks weighing on the bloc's global influence, leaving it even more dependent on the U.S. and China.[9] Moreover, the COVID-19 pandemic highlighted the conflictual nature of economic interdependence, as reliance on foreign supply chains for critical goods exposed vulnerabilities. Soft power has become an instrument of hard power, necessitating autonomy in trade, finance, and investment.  The U.S.'s strategic pivot to Asia, the exclusion of Europe in conflicts like Nagorno-Karabakh, Libya, and Syria (termed Astanisation[10], which favours Russia and Turkey), the sidelining of the EU in EU-Russia negotiations regarding the war in Ukraine, and China's state-led economic model have all pushed the EU towards the sidelines. Transatlantic divide Security is a critical dimension, with significant uncertainty surrounding the U.S. commitment to NATO under the Trump administration. Reports indicate Trump has questioned NATO's Article 5 guarantees, with actions like withdrawing military personnel from a Ukraine aid hub in Poland on April 8, 2025, and proposing to stand down 10,000 light infantry troops in Poland, Romania, and the Baltic states by 2025.[11] This has led to fears of a "NATO-minus" scenario, where the EU must fill security gaps without full U.S. backing. In response, the EU is pushing for greater strategic autonomy in defence. Initiatives like ReArm EU are mentioned, with calls for the EU to develop a stand-alone, integrated military capacity to stabilise the global economy. As Jean-Pierre Maulny, Deputy Director of the French Institute for International and Strategic Affairs (IRIS), adequately observes "The risk is now clear: a form of bilateral agreement between the United States and Russia, benefiting the interests of both countries, could leave Ukraine severely weakened and an easy prey for Moscow, thereby weakening other European countries consequently. As a consolation prize, we will have to ensure Europe's conventional security, as U.S. Secretary of Defence Pete Hegseth announced to Europeans at the opening of the NATO ministerial meeting held in Brussels on 12–13 February 2025. This situation will place Europeans in a terrible dilemma: Either they do not wish to provide security guarantees to Ukraine and risk completely discrediting themselves in the eyes of powers such as the United States, Russia, and China, as Europeans will have demonstrated that they are unable to defend the continent, while also creating a significant long-term risk to Europe's security. Alternatively, they could provide security guarantees to Ukraine, accepting the financial burden that would impact the European Union's long-term competitiveness. In light of this situation, some advocate for the establishment of a European pillar within NATO. If one considers that the United States is negotiating peace in Europe without and against the Europeans, and that they no longer wish to defend Europe with conventional military means (will they respect the NATO Defence Planning Process?), Europeans should take on Europe's security fully. This would mean taking control of NATO. It will also be easier to make NATO and the European Union work together with a more Europeanised organisation".[12] Economically, there are several issues that contemporary demand addresses, but the most pressing is, of course, the Tariffs. The U.S. and European Union are running out of time to strike a deal on trade tariffs. Negotiations have been slow since both the U.S. and EU temporarily cut duties on each other until July 9. If an agreement is not achieved by then, full reciprocal import tariffs of 50% on EU goods, and the bloc's wide-spanning countermeasures are set to come into effect.[13] According to Almut Möller, Director for European and Global Affairs and head of the Europe in the World programme (European Policy Centre), "for the first time in decades, Europeans can no longer rely on a benign partner on the other side of the Atlantic, leaving them dangerously exposed and acutely vulnerable, including on the very foundations of liberal democracy. Until recently, the U.S. dominated a world order that provided a favourable environment for the EU to extend its membership, further develop, and leverage its strengths, particularly as a trading power, without having to worry much about geopolitics. Suddenly, liberal Europe looks very lonely, and is struggling to keep up with a world of change".[14] Other problems arguably include digital regulation and data protection, antitrust policy and digital taxation, fiscal policy and social protection, geopolitical rivalries, China's rise, and competition and trade policy. EU–China conundrum Both the EU and the U.S. are concerned about China's growing economic and technological influence, but they have differing approaches to addressing this challenge. The EU has sought to maintain a balance between cooperation and competition with China, while the U.S. has adopted a more confrontational approach.[15] These differences have led to tensions in areas such as trade policy and technology regulation. For example, the EU has been critical of the U.S.'s unilateral approach to addressing China's trade practices, while the U.S. has accused the EU of being too lenient towards China. These disagreements have made it difficult to achieve a coordinated transatlantic response to China's rise.[16] According to German experts, the balance of power between China and the EU and its member states is developing increasingly asymmetrically to Europe's disadvantage. Only in trade policy – and partially in investment – can the EU maintain its position in a manner respected by China.[17] Europe holds significant importance for China across various dimensions: economically, as its top supplier and second-largest export destination; technologically, as a source of advanced technology; institutionally, as a model to emulate; politically, to advance its objectives concerning other nations, particularly the United States; and selectively, as a collaborator in areas like global health and regional stabilisation. Unlike Russia and the United States, China perceives a vital interest in the EU's continued existence and unity within a multipolar world; yet, it employs a "divide and rule" strategy. China selectively rewards or penalises individual EU countries based on their political and economic significance and their compliance with China's expectations on key issues. These issues include arms sales to Taiwan, meetings with the Tibetan Dalai Lama, and positions on the Uighurs, human rights in China, and the South China Sea. China engages with Europe on multiple levels — political, economic, technological, cultural, and academic — using various political channels (such as strategic partnerships with the EU and individual EU member states), dialogue formats (like the 16+1 format with sixteen Central and Eastern European countries), and high-level bilateral intergovernmental consultations with Germany, France, and the United Kingdom. China's hopes that the European Union would emerge as an independent and comprehensive player in global politics, serving as a counterbalance to the United States, have diminished. However, China would be supportive of any European efforts towards achieving strategic autonomy, provided it does not translate into a confrontational approach towards China itself. In contrast, Europe's political priorities—such as ensuring peace and stability in East Asia, China's role in global stability, development, environmental issues, climate change, and non-proliferation, as well as improving human rights in China — are often considered secondary and are not actively pursued by all EU member states. Europe lacks a unified and assertive foreign policy stance regarding the geopolitical rivalry between the United States and China for dominance in the Asia-Pacific region. There is also an absence of a clear position on China's authoritarian vision of order. Even in trade and investment disputes, Europe struggles to establish a unified approach to resolving these issues. The EU member states are too diverse in terms of size, profiles, and interests in their dealings with China: Economically, there is a divide between countries that are appealing industrial and technological partners for China and those that compete for favour in Beijing. Some nations have a clear interest in global governance. Additionally, the United Kingdom and France maintain their respective military presences in the Asia region. In this context, ReArm EU and its financial instrument SAFE (analysed here https://worldnewworld.com/page/content.php?no=5384 ) have the potential to provide the EU with meaningful strategic autonomy and invite genuine geopolitical actorness. EU–Russia conundrum Since Donald Trump took office as the U.S. president, the coordination of transatlantic policies regarding Russia has largely disintegrated. The White House's openness to a comprehensive "deal" with Russian President Vladimir Putin contrasts with Congress's attempts to limit Trump's foreign policy options with Russia, resulting in the marginalisation of coordination with European allies. This situation is further complicated by Washington's increasing reliance on extraterritorial sanctions, a trend that began before Trump's presidency. Consequently, according to European foreign and security experts, Europe must achieve greater strategic autonomy in its dealings with Russia. However, this relationship is particularly strained by significant conflicts of interest. Russia's invasion of Ukraine significantly disrupted the previously peaceful and liberal democratic relations among European nations. Putin's "special military operation" compelled the EU to introduce seventeen (so far) escalating economic sanction packages aimed at undermining the Russian economy and ultimately limiting Russia's capacity to continue the war. In a gesture of solidarity with Ukraine, the EU has also allocated billions of euros to both EU member states and Ukraine to avert a humanitarian disaster and ensure the provision of essential needs for Ukrainians fleeing the conflict.[18] After three and a half years from the outset of the war, Russia continues to pose a complex challenge that the EU and European nations cannot address independently in the foreseeable future. If the U.S. security guarantee weakens before Europe can bolster its own capabilities, the EU could face new vulnerabilities that Russia might exploit along its external borders, such as in the Baltic states, and elsewhere. Currently, the EU and its member states lack sufficient means to deter Russia from pursuing its interests aggressively and recklessly in the shared neighbourhood.[19] Critics, on the other hand, argue that calls for EU strategic autonomy, particularly the creation of a European Army and a significant increase in military spending, are a double-edged sword. First, the primary official rationale is that the EU must prepare itself for a possible attack on EU member states by Russia. The legacy media are full of European leaders claiming that Russia will sooner or later attack Europe.[20] Yet, this claim is not substantiated with much evidence. The proponents of the European army completely disregard numerous doubts surrounding the 2013/2014 "Euromaidan" and the role of the CIA in the events.[21] Second, according to the Office of the High Commissioner for Human Rights (OHCHR) 's estimations, the total number of conflict-related casualties in Ukraine from April 14, 2014, to December 31, 2021, stood at 51,000 – 54,000. These numbers are broken down as follows: 14,200 - 14,400 killed (at least 3,404 civilians, estimated 4,400 Ukrainian forces, and estimated 6,500 members of armed groups), and 37,000 - 39,000 injured (7,000 – 9,000 civilians, 13,800 – 14,200 Ukrainian forces and 15,800 - 16,200 members of armed groups).[22] In short, the situation was chaotic, with many casualties among civilians. Third, it was allegedly Europeans who torpedoed a first chance of peace negotiations as early as April 2014 in Istanbul.[23] Fourth, many European leaders seem to be utterly oblivious to the fact that the prolongation of the war adds to the destruction of Ukraine and Ukrainian society, deaths and emigration. Last but not least, given the fact that it is Germany that calls for both the European Army and the federalisation of Europe (with some assistance from France), one should be extra careful given the role of Germans during the WWII and the fact that neither has there been any official peace treaty with Germany nor have they recompensated countries such as Poland. Conclusion Strategic autonomy may be a necessity for Europe, given the dynamics of transatlantic relationships. The questions, however, that have to be pondered (and it does not seem that anyone in the legacy media or mainstream academia is ready to ask them) are numerous. Who will pay for that? Can Europeans afford such expenses under the current economic circumstances, and even worse economic prospects? Is the centralisation of security and military a Pandora's box? Should Europeans allow Germany (of all EU member states) to take special responsibility for this project? Isn't the pro-war rhetoric of Western political leaders making relations with Russia even more tense and dangerous, in other words, leading to escalation? History has solemnly proven that when left to their own devices, the Europeans inevitably create disastrous conflicts that have lasting consequences for generations. The American pivot to Asia and the consequent withdrawal from Europe may therefore have tragic ramifications for the European continent. References[1] Defence expenditures and NATO’s 5% commitment. (2025, June 27). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/topics_49198.htm[2] NATO and the EU have 23 members in common: Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden. See more at: https://www.consilium.europa.eu/en/policies/eu-nato-cooperation/#0[3] Lippert, B., von Ondarza, N., & Perthes, V. (2019, March). European Strategic Autonomy. Actors, Issues, Conflicts of Interests. Stiftung Wissenschaft Un Politic. Deutches Institut für Politik Und Sicherheit. https://www.swp-berlin.org/ doi:10.18449/2019RP04/#hd-d14204e263[4] Damen, M. (2022, July). EU strategic autonomy 2013-2023: From concept to capacity (EU Strategic Autonomy Monitor). European Parliamentary Research Service. https://www.eprs.ep.parl.union.eu[5] Informal meeting of the Heads of State or Government Versailles Declaration. (2022, March 10–11). Stiftung Wissenschaft Un Politic. Deutches Institut Fur Politik Und Sicherheit. https://www.consilium.europa.eu/media/54773/20220311-versailles-declaration-en.pdf[6] See more at: https://www.eeas.europa.eu/eeas/csdp-structure-instruments-and-agencies_en[7] See more at: https://fpi.ec.europa.eu/what-we-do/european-peace-facility_en[8] Damen, M. (2022, July). EU strategic autonomy 2013-2023: From concept to capacity (EU Strategic Autonomy Monitor). European Parliamentary Research Service. https://www.eprs.ep.parl.union.eu[9] Open but Secure:  Europe’s Path to Strategic Interdependence. INSIGHT REPORT. (2025). World Economic Forum. https://reports.weforum.org/docs/WEF_Open_but_Secure_Europe%E2%80%99s_Path_to_Strategic_Interdependence_2025.pdf[10] In reference to the Astana format on Syria) which leads to the exclusion of Europe from the settlement of regional conflicts in favour of Russia and Turkey. See more: https://www.eeas.europa.eu/eeas/why-european-strategic-autonomy-matters_en[11] Tilles, D. (2025, April 8). US to withdraw military from Ukraine aid hub in Poland. Notes from Poland. https://notesfrompoland.com/2025/04/08/us-to-withdraw-military-from-ukraine-aid-hub-in-poland/[12] Maulny, J.-P. (2025, February 13). United States – Europe: Our Paths Are Splitting. The French Institute for International and Strategic Affairs (IRIS). https://www.iris-france.org/en/united-states-europe-our-paths-are-splitting/[13] Kiderlin, S. (2025, June 18). These are the sticking points holding up a U.S.-EU trade deal. CNBC. https://www.cnbc.com/2025/06/18/these-are-the-sticking-points-holding-up-a-us-eu-trade-deal.html#:~:text=The%20EU%20and%20US%20flags,Poland%20on%20March%206%2C%202025.&text=Afp%20%7C%20Getty%20Images-,The%20U.S.%20and%20European%20Union%20are%20running%20out%20of%20time,($1.93%20trillion)%20in%202024?[14] Möller, A. (2025, February 26). Europe in the World in 2025: Navigating a perilous world with realism and ambition. European Policy Centre. https://www.epc.eu/publication/Europe-in-the-World-in-2025-Navigating-a-perilous-world-with-realism-625da4/#:~:text=2025%20will%20be%20a%20year,with%20a%20world%20of%20change[15] Bradford, A. (2023). When Rights, Markets, and Security Collide (pp. 221–254). Oxford University Press. https://doi.org/10.1093/oso/9780197649268.003.0007[16] Portanskiy, A. (2023). UE - US: new barriers to trade. Современная Европа. https://doi.org/10.31857/s020170832304006x[17] Lippert, B., von Ondarza, N., & Perthes, V. (2019, March). European Strategic Autonomy. Actors, Issues, Conflicts of Interests. Stiftung Wissenschaft Un Politic. Deutches Institut für Politik Und Sicherheit. https://www.swp-berlin.org/ doi:10.18449/2019RP04/#hd-d14204e263 [18] Klüver, L. (2025, April 18). Putin’s War on Ukraine: What can the EU actually do? European Careers Association. https://ecamaastricht.org/blueandyellow-knowyourunion/putins-war-on-ukraine-what-can-the-eu-actually-do#:~:text=Similarly%2C%20the%20Strategic%20Compass%2C%20the%20most%20recent,its%20interests%20and%20promote%20its%20values%20internationally.[19] Lippert, B., von Ondarza, N., & Perthes, V. (2019, March). European Strategic Autonomy. Actors, Issues, Conflicts of Interests. Stiftung Wissenschaft Un Politic. Deutches Institut für Politik Und Sicherheit. https://www.swp-berlin.org/ doi:10.18449/2019RP04/#hd-d14204e263 [20] ochecová, K. (2025, February 11). Russia could start a major war in Europe within 5 years, Danish intelligence warns. Politico. https://www.politico.eu/article/russia-war-threat-europe-within-5-years-danish-intelligence-ddis-warns/[21] Katchanovski, I. (2024). The Maidan Massacre in Ukraine The Mass Killing that Changed the World. Palgrave Macmillan. https://doi.org/https://doi.org/10.1007/978-3-031-67121-0[22] Office of the United Nations High Commissioner for Human Rights. (2022, January 27). Conflict-related civilian casualties in Ukraine: December 2021 update. United Nations Human Rights Monitoring Mission in Ukraine. https://ohchr.org[23] Johnson, J. (2022, May 6). Boris Johnson Pressured Zelenskyy to Ditch Peace Talks With Russia: Ukrainian Paper. Common Dreams. https://www.commondreams.org/news/2022/05/06/boris-johnson-pressured-zelenskyy-ditch-peace-talks-russia-ukrainian-paper

Abstract Globalization has posed significant challenges for Latin American countries, prompting them to rethink their economic integration models. Mercosur and the Pacific Alliance, the two main regional blocs, have faced processes of economic and political convergence, albeit with different approaches: Mercosur, oriented towards protectionism, and the Pacific Alliance, which is committed to trade liberalization. In this context, the European Union emerges as a key player with which both blocs have sought to strengthen their economic relations, through strategic agreements such as the one signed in 2019, the Mercosur-EU free trade agreement. The article examines the dynamics of economic integration in Latin America, analyzing the structural divergences between the blocs and their capacity to face global challenges. In particular, it delves into the implications of the Mercosur-EU agreement, with special attention to economic impacts, sectoral cooperation opportunities and environmental challenges. The research also includes a case study on the implementation of the agreement and future prospects, complemented by an interview with the Consul of Uruguay to analyze the diplomatic position and prospects for the development of relations between Latin America and the European Union. The objective of this work is to explore how economic integration models can contribute to face global challenges, promote sustainable development and strengthen Latin America's competitiveness in the global scenario Introduction Global Context of Cooperation Between the European Union and Latin America Future cooperation between the European Union (EU) and the main Latin American trade blocs — Mercosur and the Pacific Alliance — is expected to focus on key areas such as sustainability, digitalization, and technological innovation. These sectors are essential for modernizing the involved economies and building a long-term partnership capable of addressing the economic, environmental, and geopolitical challenges of today’s global landscape. One of the main opportunities for cooperation lies in the circular economy. The EU promotes sustainable production and consumption models that aim to reduce waste and optimize resources. This approach paves the way for close collaboration with Latin American countries in waste management and reducing the environmental impact of industrial activities. The potential economic and labor impacts of this collaboration are significant, as it could create new opportunities for innovation and development in strategic sectors. At the same time, digitalization is emerging as a key pillar for the economic transformation of both regions. The EU’s Digital Alliance, for example, aims to strengthen Latin American economies by promoting connectivity, the development of digital skills, and the creation of new technological ecosystems. This effort also includes social inclusion initiatives, targeting vulnerable sectors such as informal workers and the elderly population, to reduce the digital divide and foster social inclusion. Another area of cooperation is maritime transport. The EU intends to invest in advanced and sustainable port infrastructure to improve operational efficiency and reduce the environmental impact of port activities. This initiative aligns with global sustainability goals and the EU’s broader strategy to promote environmentally responsible trade practices. However, cooperation between the EU and Latin American trade blocs also faces challenges. While the Pacific Alliance appears more inclined toward adopting advanced technologies, Mercosur faces significant structural reforms to close the technological gap among its members. Despite these hurdles, the EU is committed to supporting both regions, strengthening its role as an economic and political partner, and promoting a development model that integrates sustainability and inclusiveness. In this context, digitalization, economic modernization, and infrastructure diversification emerge as key elements to address global challenges. These factors are essential for promoting fair and inclusive development in both regions, creating a favorable environment for innovation and sustainable economic growth. The European Union considers Latin America as a strategic partner not only because of its natural resources but also due to shared values, such as the fight against climate change. Within this framework, the EU’s Green Deal and the environmental diplomacy play a crucial role in supporting ecological transition in the region, with a particular focus on renewable energy, the protection of the Amazon, and sustainable agricultural practices. Nevertheless, challenges remain, including the strong influence of traditional economic sectors like agribusiness and limited institutional capacity in some countries. Despite these issues, the EU is working to encourage the adoption of strict environmental standards through investments in sustainable projects and clean technologies, helping to reduce deforestation and improve biodiversity. The cooperation with the Pacific Alliance is particularly strong due to the region’s openness to sustainability, whereas Mercosur faces internal obstacles such as regulatory fragmentation and coordination difficulties among its members. Still, the EU continues to support initiatives in renewable energy, energy efficiency, and the bioeconomy, creating important economic opportunities for the region. Rising geopolitical competition, especially with China and the United States, is pushing the EU to strengthen its ties with Latin America by backing initiatives like the Global Gateway, which aims to promote sustainable and transparent infrastructure. Programs like “Horizon Europe” support scientific development in the region, while initiatives such as Erasmus+ encourage cultural exchange and the training of a new generation of professionals. The EU stands out for its integrated approach, aiming to promote a development model that combines economic growth, social inclusion, and environmental protection—seeking to overcome political and economic barriers and foster effective and mutually beneficial cooperation between the two regions. The main challenge remains translating these ambitions into concrete actions. The adoption of shared standards and the reduction of non-tariff barriers will be key elements in achieving fruitful cooperation. Despite the difficulties, EU–Latin America cooperation has the potential to lead the future toward sustainable and inclusive development, with positive effects on global policy, the ecological transition, and international trade. Methodology The methodology used in the preparation of this article combined extensive documentary research with the collection of primary data through direct interviews. First, documentary research served as the main foundation for analyzing the issues discussed, such as the environmental impacts and diplomatic challenges related to the Association Agreement between the European Union and Mercosur. To that end, official sources were consulted, including documents from the European Commission and reports from the European Parliament, which provide detailed data and analyses on the trade, environmental, and social aspects of the agreement. This phase of the research included a review of institutional reports, political resolutions, and other public documents available online, offering a comprehensive view of regulatory developments and the political positions adopted by European institutions and Mercosur countries. In addition to documentary research, a distinctive element of this work was an interview conducted with the General Consul of Uruguay in Spain, who provided a direct diplomatic perspective on the topic. The interview aimed to gather insights and information on the agreement negotiations from Mercosur’s point of view, exploring the political dynamics and diplomatic challenges associated with the understanding between the two blocs. The topics addressed during the interview focused on how Mercosur perceives the agreement in relation to its economic and environmental priorities, and on the measures being taken to balance development and sustainability within the framework of European policies. Finally, the research methodology was enhanced through the triangulation of information obtained by comparing data from official EU sources with the insights gathered from the interview. This approach enabled the development of a balanced and comprehensive view of the topics discussed. The combination of qualitative methods allowed for an in-depth analysis of the challenges and opportunities arising from the Mercosur–EU Agreement, as well as its social, economic, and environmental implications at the international level. Development Inside the Agreement The free trade agreement between Mercosur and the European Union, signed in 2019 after more than twenty years of negotiations, stands as one of the most ambitious examples of interregional cooperation. This treaty, which aims to create one of the largest free trade areas in the world, involves nearly 770 million people and accounts for around 25% of global Gross Domestic Product (GDP). The significance of the agreement is heightened by the current geopolitical context, marked by a rise in protectionist policies and the growing influence of China, making it crucial to strengthen ties between the two regional blocs (European Commission, 2019).   Trade relations across both sides of the Atlantic are substantial. In the previous year, European exports to the four Mercosur countries amounted to €55.7 billion, while imports of goods totaled €53.8 billion. The roots of cooperation between the European Union and Mercosur go back to the 1990s, when the EU initiated a structured dialogue with Mercosur aimed at promoting trade liberalization, political dialogue, and cooperation in various sectors. The agreement signed in 2019 can be interpreted as a strategic response to increasing global protectionist pressures. However, the ratification process has been hindered by political disagreements, economic asymmetries, and concerns over potential environmental impacts, such as deforestation and pesticide use (López, 2020). The agreement has received support from several EU countries, including Germany, Spain, and Portugal, while others — such as France, Poland, and Ireland — have opposed it due to fears related to unfair competition and food safety. Specifically, the treaty could lead to increased imports of meat and other agricultural products from Mercosur, which raises concern among EU agricultural sectors. At the same time, Mercosur views the agreement as an opportunity to strengthen its international competitiveness and reduce its economic dependence on China and the United States (Pereira, 2021). The path to ratification, still ongoing, requires a lengthy legal process involving approvals by various national parliaments. If ratified, the agreement will help reduce tariffs and simplify customs procedures, benefiting strategic sectors such as industry, chemicals, and pharmaceuticals. However, ongoing disagreements among the involved countries continue to cast uncertainty over the future of the initiative (European Commission, 2019). The future of the free trade agreement between the European Union and Mercosur stands at a critical crossroads, facing the risk of a complete breakdown in negotiations or, alternatively, a "no-deal" scenario. However, between these two extreme outcomes, there are several intermediate solutions, which could include modifications to the treaty’s controversial points or even the possibility of granting a new mandate to the European Commission to renegotiate the agreement — either partially or entirely. Such modifications could lead to significant delays in the progress already made (Brito, 2021). The Portuguese presidency of the EU Council, which began on January 1, 2025, now faces a particularly complex situation as it attempts to steer the process toward a positive conclusion. Portuguese Foreign Minister Augusto Santos Silva has expressed his intent to accelerate the ratification process and promote the agreement’s entry into force. However, resistance from France, which fears negative impacts on its agricultural and livestock sectors, remains a major obstacle. Protests by French farmers, including demonstrations and road blockades, highlight internal difficulties within the European Union (Müller, 2020). Despite this opposition, the European Commission — backed by countries like Spain and Germany — continues to push for the agreement’s ratification, highlighting the enormous economic benefits for both parties. It is estimated that the agreement could result in a €15 billion increase in GDP for the European Union and €11.4 billion for the Mercosur countries. Moreover, the elimination of customs tariffs would boost European exports, particularly in sectors such as wine, alcoholic beverages, and dairy products. For the European Union, the agreement represents not only a strategic opportunity to expand trade with South America but also a mean to strengthen its economic security amid an unstable geopolitical context (European Commission, 2021). The deal is expected to create new commercial and employment opportunities with a positive impact on both regions’ economies. Particularly, it could attract sustainable investment into Mercosur, especially in high-tech sectors. Additionally, it would support the strengthening of supply chains and enhance the EU’s economic resilience, reinforcing strategic cooperation between the two regional blocs.   However, the success of the agreement will depend on both parties’ ability to overcome existing differences, address environmental and human rights concerns, and implement effective monitoring mechanisms. On Mercosur’s side, it will be necessary to undertake economic reforms to enhance competitiveness, stimulate innovation, and attract foreign investment. Meanwhile, the European Union will face the challenge of gradually reducing agricultural subsidies to ensure fair competition (Pereira, 2021). In summary, the free trade agreement between the European Union and Mercosur represents a significant opportunity to strengthen economic cooperation between two blocs with complementary economies: the EU, a global leader in the industrial sector, and Mercosur, one of the main exporters of agricultural raw materials. The agreement aims to increase bilateral trade and direct investment, particularly in the agricultural and industrial sectors, with important implications for the future of interregional cooperation and global trade. The Association Agreement between the EU and Mercosur has raised serious concerns of both environmental and diplomatic nature. While designed to strengthen economic and political ties between the two blocs, the agreement could have devastating environmental impacts, especially considering Mercosur’s heavy reliance on agricultural exports to the EU. Brazil, the leading exporter of products like soy, beef, and coffee, stands as a clear example of these issues. The demand for these products is directly linked to deforestation, with severe consequences for vital ecosystems such as the Amazon. Although deforestation in Brazil decreased by 50% in 2023 compared to the previous year, future projections remain worrisome. The access to European markets, guaranteed by the agreement, could accelerate land conversion and intensify pressure on natural resources. Some studies estimate that the agreement could lead to the conversion of between 560 and 1,730 km² of land — an impact that, although lower than the 13,235 km² of annual deforestation recorded in the Brazilian Amazon in 2021, remains significant (FAO, 2021). A crucial chapter of the agreement is the “Trade and Sustainable Development Chapter” (TSDC), which promotes cooperation between the EU and Mercosur on environmental issues and establishes a commitment to adhere to international climate agreements, such as the Paris Agreement. However, criticism of the TSDC focuses on the lack of binding enforcement mechanisms for environmental regulations and the absence of adequate sanctions, which limits the agreement’s ability to ensure compliance with environmental commitments. Despite the creation of a joint committee to monitor the implementation of the TSDC, its effectiveness is weakened by the lack of concrete punitive tools (European Commission, 2020). The European Commission also highlights the value that Mercosur can bring in terms of agricultural and fishery products to the European market. Some of these goods — such as soy, cocoa, and coffee — are items that EU member states cannot produce or only produce in minimal quantities. Others, such as beef, poultry, honey, and cheese, compete directly with European agricultural businesses. This has fueled rural anger, particularly among French, Polish, and Italian farmers, who accuse the EU of promoting unfair competition, given that South American producers are not subject to the same regulations as their European counterparts. Concerns about increasing deforestation and the weakening of environmental and social standards are among the primary fears expressed by environmental groups and certain EU member states. During Jair Bolsonaro’s presidency (2019–2022), environmental policies were significantly rolled back, exacerbating these concerns. However, the election of Luiz Inácio Lula da Silva has raised new hopes for a renewed commitment to environmental protection, although economic priorities may complicate the negotiation process (Doyle, 2023). Despite the criticisms, the agreement presents an opportunity to promote the sustainable management of natural resources, enhance transparency in production chains, and strengthen the enforcement of environmental laws in Mercosur countries. To achieve a positive and lasting impact, however, concrete commitment from both governments and the private sector will be essential, supported by effective monitoring mechanisms and enforceable sanctions. An innovative aspect of the agreement is the inclusion of clauses that mandate the end of illegal deforestation by 2030, with a monitoring system designed to ensure compliance with these rules. Although this commitment represents an important step forward, doubts remain about its enforcement and effective oversight — particularly regarding Brazil’s compliance, given its central role in deforestation. Additionally, the agreement stipulates that only “deforestation-free” products — such as soy, beef, palm oil, and cocoa — will be allowed to enter the EU market (European Commission, 2022). Concerns related to food safety and public health are equally relevant. The importation of beef from countries where the use of antibiotics and hormones is less regulated could compromise food safety in Europe, as highlighted by an audit conducted by the European Commission. Some critics fear that the agreement may lower product quality standards and increase unfair competition for European farmers. Furthermore, there is concern that the deal could encourage industrial relocation to South America, resulting in job losses in Europe (OECD, 2021). Despite these challenges, the agreement represents a rare opportunity to strengthen interregional relations between the EU and Mercosur in the face of global challenges such as climate change and biodiversity protection. However, the success of the agreement will depend on the ability of both regions to effectively integrate economic interests with the need for social and environmental sustainability. It will be necessary to adopt strict measures to monitor the environmental and social impacts of the agreement, actively involve local communities in policymaking, and promote a development model that balances economic growth with sustainability. To further explore the issues affecting Mercosur and potential solutions for greater regional integration, we interviewed Ramiro Rodríguez Bausero, General Consul of Uruguay in Spain. During the conversation, Bausero shared his perspective on the economic and political challenges that face the bloc, as well as on the opportunities for cooperation with the Pacific Alliance and the policies needed to address emerging global problems such as climate change and food security. Below are some key excerpts from the interview, along with a commentary on how these insights contribute to a deeper understanding of the challenges and opportunities facing Mercosur in a global context. To better understand the issues influencing Mercosur, it is essential to examine the internal challenges and asymmetries among its members. According to Ramiro Rodríguez Bausero, General Consul of Uruguay in Spain, “Mercosur displays significant disparities in terms of size and level of development; there are evident inequalities between countries and regions, and these persist over time.” This observation highlights one of the core difficulties in achieving economic integration within the bloc: the economic disparities between its larger and smaller members. Resources and investments are unevenly distributed, and the inability to effectively manage these asymmetries hinders balanced growth, with larger countries often dominating the economic process. This concept is fundamental to understanding the structural limitations that constrain Mercosur’s development. Another crucial aspect is the influence of ideological orientation on the integration processes. Bausero notes that “within the bloc, different visions coexist, based on internal productive structures, and as governments change, their profiles evolve toward more or less protectionist/open policies, depending on the ideological orientation of each administration.” This phenomenon poses a major obstacle to strengthening Mercosur, as the swings between protectionist and open-market policies make it difficult to establish a coherent and long-term strategy. Ideological differences between governments further complicate the formation of a stable and strategic economic bloc. Nevertheless, despite internal challenges, there are significant opportunities for cooperation with other regional entities such as the Pacific Alliance. Bausero highlights that “strengthening ties between the two blocs presents several areas with the potential for cooperation, such as trade facilitation, reciprocal investment, physical integration, technological innovation, and the movement of people.” Although political divergences may hinder closer cooperation, these mutual areas of interest could reinforce regional integration, especially in fields like trade and technological innovation. On the environmental sustainability and climate change front, Bausero suggested that “Mercosur could implement more ambitious climate policies, promoting a transition to a low-carbon economy with measures that support renewable energy and encourage technological innovation in sustainable industries.” Adopting more advanced climate policies represents an opportunity for Mercosur to address global climate challenges. Given its significant influence over agricultural policies and natural resource management, the bloc could play a crucial role in driving the shift toward a green economy — responding to international pressure and improving its reputation as a responsible global actor. The trade potential of Mercosur, especially in the context of the agreement with the European Union, is another key issue. Bausero emphasized that “the benefits of the trade component of the Agreement show that many of the goods comprising Mercosur countries’ export offerings to the EU will receive preferential treatment in the European market.” This agreement could create new opportunities for economic growth among member countries, reducing their dependence on Asian markets — particularly China. However, internal challenges related to the agreement, especially concerning the agricultural sector, could hinder full implementation and require careful attention. Finally, reforming Mercosur has emerged as a relevant topic, with some countries, like Uruguay, advocating for a more flexible bloc. Bausero stated: “Some countries (such as Uruguay) have argued for the need to make the bloc more flexible, transforming it into a Free Trade Area (FTA), allowing each member to pursue its own international agenda, including negotiating agreements with third countries.” The proposal to transform Mercosur into a more flexible FTA reflects criticism of the bloc's rigidity. If implemented, such a reform could allow member states to adopt more individualized policies — but it also raises questions about the future of regional integration and the political and economic unity of the bloc. Another important area of development is digital cooperation and infrastructure. According to Bausero, “the so-called ‘Digital Mercosur’ is a cooperation project between the EU and Mercosur, aimed at reducing technological asymmetries and promoting common policies and strategies in the fields of the Information Society, e-commerce, and human resource training.” Digital cooperation could be one of the main drivers of growth for Mercosur, enabling member countries to overcome technological inequalities and access global markets. Digitalization and the integration of modern technologies are essential to enhancing regional competitiveness and developing an interconnected digital economy. Conclusions The free trade agreement between Mercosur and the European Union, signed in 2019, represents a significant step toward greater interregional economic integration, with the ambitious goal of creating one of the largest free trade areas in the world. However, its future remains uncertain and depends on a series of interrelated factors, including internal political divergences within the EU, environmental challenges, and economic inequalities among Mercosur members. These elements raise numerous questions and opportunities for critical reflection that could be explored in future research. First and foremost, one of the main issues to address is the environmental impact of the treaty. The "Trade and Sustainable Development Chapter" (TSDC), while establishing a commitment to international climate agreements, does not provide sufficiently binding mechanisms to ensure effective environmental protection. What is the role of trade policy in a context of growing urgency for environmental sustainability? To what extent can the current provisions halt deforestation and guarantee the sustainable use of natural resources, especially in countries like Brazil, where agricultural expansion is directly linked to ecosystem destruction? These questions could pave the way for deeper research into the monitoring and effectiveness of environmental policies within trade agreements. Another relevant issue is the question of economic asymmetries within Mercosur. The disparities among member countries, in terms of size and development level, pose a challenge to genuine economic integration. How can smaller Mercosur countries compete on equal footing with larger ones without compromising their competitiveness? Furthermore, how can it be ensured that the benefits of the agreement are more equitably distributed among the bloc's members? Answering these questions is crucial for implementing policies that promote balanced and inclusive development. The geopolitical context also plays a fundamental role. In a scenario where protectionist trends are on the rise and China's influence continues to grow, how might the agreement between the EU and Mercosur redefine trade and geopolitical relations between the two blocs? Could this agreement represent the beginning of a reorganization in global economic balances, reducing dependence on Asian markets and strengthening ties between Europe and Latin America? These questions invite a deeper analysis of the geopolitical implications of the treaty and its influence on global trade dynamics. Additionally, the proposal to reform Mercosur — advocating for greater flexibility by transforming it into a Free Trade Area (FTA) — raises important questions. How would such a reform affect the bloc’s political and economic cohesion? Would flexibility be the right approach to addressing internal differences, or could it instead lead to the fragmentation of Mercosur and undermine its ability to act as a unified player on the international stage? Finally, digital cooperation, particularly the "Digital Mercosur" project, could become one of the most promising areas of development. How could digitalization and technological cooperation between the EU and Mercosur help reduce technological disparities and promote the competitiveness of the Latin American bloc? Strengthening digital infrastructure could accelerate Mercosur’s economic growth and open new trade opportunities, but what political and technological challenges will arise in this digitalization process? In conclusion, the free trade agreement between the European Union and Mercosur represents a significant opportunity, but it also poses a range of challenges that require ongoing attention. The questions raised by this agreement— from environmental concerns and economic asymmetries to geopolitical dynamics and structural reforms within Mercosur — offer numerous starting points for future research. 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Note: some parts of the article have been excluded, if you want to go deep in the article please check  https://doi.org/10.1177/01445987251314504 for the complete version. Abstract Nuclear power plays a pivotal role in sustainable electricity generation and global net zero emissions, contributing significantly to this secure pathway. Nuclear power capacity is expected to double, escalating from 413 gigawatts (GW) in early 2022 to 812 GW by 2050 within the net zero emissions (NZE) paradigm. The global energy landscape is undergoing significant transformation as nations strive to transition to more sustainable energy systems. Amidst this shift, nuclear power has emerged as a crucial component in the pursuit of a sustainable energy transition. This study examines nuclear power's multifaceted role in shaping sustainable energy transition. It delves into nuclear energy's contributions toward decarbonization efforts, highlighting its capacity to provide low-carbon electricity and its potential role in mitigating climate change. Furthermore, the study explores the challenges and opportunities associated with integrating nuclear power into energy transition strategies, addressing issues such as safety, waste management, and public perception. In conclusion, the global nuclear power capacity is anticipated to reach approximately 530 GW by 2050, representing a substantial shortfall of 35% compared with the trajectory outlined in the NZE pathway. Under the NZE scenario, nuclear power demonstrates exceptional expansion, nearly doubling from 413 GW in early 2022 to 812 GW by 2050. Concurrently, the trajectory highlights a transformative shift in renewable energy investments, with annual expenditures surging from an average of US$325 billion during 2016–2020 to an impressive US$1.3 trillion between 2031 and 2035. These projections underscore the critical role of nuclear and renewable energy investments in achieving global sustainability and emission reduction goals. Introduction Global warming and greenhouse gas emissions pose some of the most pressing challenges of the 21st century. The combustion of fossil fuels for electricity generation is a major contributor to these issues, releasing billions of tons of carbon dioxide (CO2) into the atmosphere annually (Abbasi et al., 2020; Nassar et al., 2024; Rekik and El Alimi, 2024a). In this context, nuclear energy emerges as a critical component of the solution. Unlike fossil fuels, nuclear power generates electricity with minimal greenhouse gas emissions, offering a reliable and scalable alternative to bridge the gap between energy demand and decarbonization goals. It operates independently of weather conditions, providing consistent energy output and complementing the intermittency of renewable sources like wind and solar (Rekik and El Alimi, 2024b, 2024c). Furthermore, advancements in nuclear technologies, including small modular reactors (SMRs) and generation IV reactors, have addressed historical concerns related to safety, waste management, and cost-effectiveness (Lau and Tsai, 2023). In 2022, global investment in low-emission fuels will maintain a robust growth trajectory, reaching a sum of US$13 billion. A significant portion of this investment was allocated toward liquid biofuels, totaling US$9.4 billion, and biogas, amounting to US$2.7 billion. It is important to emphasize that liquid biofuels constituted approximately 80% of the overall investment surge observed in 2022, with investments in biogas contributing 4% of the total. The residual portion of the investment was directed toward low-emission hydrogen production, which attained a sum of US$1.2 billion in 2022, representing an almost fourfold increase compared to the figures recorded in 2021 (Khaleel et al., 2024).Nuclear power is a pivotal component of low-carbon energy, which significantly contributes to the realization of a low-carbon economy and establishment of a green energy grid (Arvanitidis et al., 2023; El Hafdaoui et al., 2024; Fragkos et al., 2021). According to current data, 442 nuclear power reactors are operational worldwide, collectively generating 393 gigawatts (GW) of electricity, thereby furnishing a consistent and dependable source of low-carbon power (Mathew, 2022). Nuclear electricity constitutes approximately 11% of the total global electricity generation, representing a substantial portion of the global low-carbon electricity production (Alam et al., 2019). Recent advancements have enhanced the affordability and appeal of nuclear power as an alternative source of energy. These advancements encompass progress in large reactor technologies, the emergence of novel approaches such as advanced fuel utilization and SMRs, engineering breakthroughs facilitating the extension of operational lifespans for existing reactors, and innovations in materials science and improved waste management practices (Kröger et al., 2020; Zhan et al., 2021). Fast breeder reactor technology has transitioned into a commercial realm, offering benefits beyond electricity generation by enabling the production of surplus fuel and enhancing the efficiency of nuclear waste incineration, surpassing the capabilities of existing commercial reactor technologies (Lau and Tsai, 2023). Nuclear power plays a substantial role within a secure global trajectory toward achieving net zero emissions (NZE) (Addo et al., 2023; Dafnomilis et al., 2023). Nuclear power capacity experiences a twofold increase, progressing from 413 GW at the outset of 2022 to 812 GW by 2050 within the NZE paradigm. It is apparent that the annual additions to nuclear capacity peaked at 27 GW per year during the 2030s, surpassing the levels observed in the preceding decade. Despite these advancements, the global proportion of nuclear power within the overall electricity generation portfolio has experienced a marginal decline, settling at 8% (Murphy et al., 2023; Ruhnau et al., 2023). Emerging and developing economies (EMDEs) substantially dominate global growth, constituting over 90% of the aggregate, with China poised to ascend as a preeminent nuclear power producer prior to 2030. Concurrently, advanced economies collectively witness a 10% augmentation in nuclear power capacity as retirements are counterbalanced by the commissioning of new facilities, predominantly observed in nations such as the United States, France, the United Kingdom, and Canada (Bórawski et al., 2024). Furthermore, annual global investment in nuclear power has experienced a notable escalation, soaring from US$30 billion throughout the 2010s to surpass US$100 billion by 2030, maintaining a robust trajectory above US$80 billion by 2050 (IEA, 2022). In 2022, global nuclear power capacity experienced a modest increase of approximately 1.5 GW, reflecting a marginal year-on-year growth of 0.3%. This expansion was primarily driven by new capacity additions that surpassed the retirement of an over 6 GW of existing capacity (Fernández-Arias et al., 2023; Mendelevitch et al., 2018). EMDEs accounted for approximately 60% of the new capacity additions, underscoring their increasing significance in the global nuclear energy landscape. Conversely, more than half of the retirements were observed in advanced economies, including Belgium, the United Kingdom, and the United States. Table 1 shows the nuclear power capacity by region in the NZE from 2018 to 2030.   In alignment with the Net Zero Scenario, it is imperative for the global nuclear capacity to undergo an expansion averaging approximately 15 GW per annum, constituting a growth rate slightly exceeding 3% annually, until 2030. This strategic augmentation is crucial for sustaining the contribution of the nuclear sector to electricity generation, maintaining its share at approximately 10% (Liu et al., 2023). Such an expansion necessitates concerted efforts in both advanced economies and EMDEs. Furthermore, prioritizing the extension of operational lifetimes of existing nuclear facilities within G7 member states would not only fortify the existing low-emission infrastructure, but also facilitate the integration of new nuclear capacity, thereby augmenting the overall nuclear energy portfolio. [...] The significant contribution of nuclear power to sustainable energy transitions is underscored by its multifaceted role in addressing the pressing challenges of climate change and energy security (Asif et al., 2024). As nations worldwide endeavor to shift toward greener energy systems, nuclear power has emerged as a critical pillar of the decarbonization journey. Its ability to provide low-carbon electricity, mitigate climate change impacts by 2050, and enhance energy security highlights its pivotal importance in the broader context of sustainable energy transitions (Bhattacharyya et al., 2023; NEA, 2015). Thus, to fully realize its potential, challenges such as safety, waste management, and public perception must be addressed effectively. By leveraging robust policy frameworks, technological advancements, and international collaboration, nuclear power is poised to play a vital role in shaping the future of sustainable energy transitions on a global scale. Furthermore, the dynamic landscape of nuclear power development is evident in the significant influence exerted by EMDEs, particularly China, which is expected to emerge as a leading nuclear power producer by 2030 (Fälth et al., 2021; Nkosi and Dikgang, 2021). Concurrently, advanced economies are witnessing notable expansions in nuclear power capacity driven by the commissioning of new facilities to offset retirements (Budnitz et al., 2018). This trend is further reinforced by a notable surge in annual global investment in nuclear power, underscoring the sustained commitment to nuclear energy's pivotal role in sustainable energy transitions in the foreseeable future (IEA, 2019). The primary objective of this article is to explore the strategic role of nuclear power in advancing global sustainability goals and achieving zero emissions. The objective is structured around the following key agendas: •Nuclear power: prominence and green electricity source•Nuclear's role in achieving net zero by 2050•Nuclear power's significance in power system adequacySpecific technologies for sustainability in nuclear energy production•Investment in nuclear power•Addressing policy implications This comprehensive analysis aims to provide actionable insights into harnessing nuclear power for sustainable electricity generation and its pivotal role in achieving global zero-emission targets. Data and methodology This article conducts an in-depth analysis of the role of nuclear power in achieving sustainable electricity generation and supporting NZE targets. The article also addresses the potential of nuclear energy as a prominent and environmentally favorable electricity source, examining nuclear power's contribution toward the net zero by 2050 goal, its critical importance in ensuring power system adequacy, investment imperatives, and the broader policy implications.  [...] Nuclear power: prominence and green electricity source In 2020, nuclear power will constitute approximately 10% of the global electricity generation portfolio. This proportion, which had previously stood at 18% during the late 1990s, has experienced a decline; nonetheless, nuclear energy retains its status as the second-largest provider of low-emission electricity, trailing only hydroelectricity, and serves as the primary source within advanced economies. Despite the substantial proliferation of wind and solar PV technologies, nuclear electricity production in 2020 surpassed the aggregate output of these renewable sources. As of 2021, the global cumulative installed nuclear capacity has reached 413 GW, with 270 GW of this total being installed in advanced economies (Guidi et al., 2023; Halkos and Zisiadou, 2023; Pan et al., 2023; Zhang et al., 2022). Nuclear power generation during this period amounted to 2653 TWh, positioning it as the second largest source of electricity generation after hydropower, which generated 4275 TWh, as depicted in Figure 1.   In addition to its significant role in power generation, nuclear energy plays a crucial role in mitigating carbon dioxide (CO2) emissions. Since the 1970s, nuclear power has helped avoid the global release of approximately 66 gigatons (Gt) of CO2 globally, as shown in Figure 2.   Without the contribution of nuclear power, cumulative emissions from electricity generation would have increased by approximately 20%, whereas total energy-related emissions would have increased by 6% over this period (Wagner, 2021). Advanced economies accounted for more than 85% of these avoided emissions, with the European Union accounting for 20 Gt and the United States for 24 Gt, representing over 40% and 25% of total electricity generation emissions, respectively. In the absence of nuclear power, Japan would have experienced an estimated 25% increase in emissions from electricity generation, whereas Korea and Canada would have seen an increase of approximately 50%. Nuclear's role in achieving net zero by 2050 Nuclear energy has emerged as a pivotal low-emission technology within the trajectory toward achieving NZE (Pioro et al., 2019). In addition, it serves as a complementary force, bolstering the accelerated expansion of renewables, thereby facilitating the reduction of emissions from the global electricity sector to net zero by 2040 (Krūmiņš and Kļaviņš, 2023; Islam et al., 2024). Beyond its intrinsic contribution to fostering a low-emission electricity supply, nuclear power is significant as a dispatchable generating asset, fortifying supply security through its provision of system adequacy and flexibility. Furthermore, it is instrumental in furnishing heat for district heating networks and in selecting industrial facilities. Despite this, the prospective role of nuclear energy hinges significantly on the deliberations and determinations of policymakers and industry stakeholders concerning the pace of new reactor construction initiatives and the continued operational lifespan of existing nuclear facilities (Li et al., 2016; Li et al., 2015).In terms of the NZE trajectory, the global nuclear power capacity exhibits a remarkable surge, nearly doubling from 413 GW at the onset of 2022 to 812 GW by 2050 (Price et al., 2023; Utami et al., 2022). This augmentation primarily stems from the vigorous initiation of new construction endeavors, which effectively counterbalance the gradual decommissioning of numerous extant plants. Such an escalation constitutes a pronounced acceleration in comparison to the preceding three decades, characterized by a mere 15% increment in capacity, equivalent to approximately 60 GW (Haneklaus et al., 2023; Obekpa and Alola, 2023; Sadiq et al., 2023). Figure 3 demonstrates the nuclear power capacity within each country/region under the NZE by 2050 scenario.   The expected growth in nuclear power capacity far exceeds the path outlined by the current policies and legal frameworks. According to the Stated Policies Scenario (STEPS), the nuclear capacity is projected to reach approximately 530 GW by 2050, which is 35% lower than that of the NZE pathway (Espín et al., 2023; Nicolau et al., 2023; Nnabuife et al., 2023; Wang et al., 2023). Without a significant shift from recent nuclear power development trends, achieving NZE would require a limited reliance on a smaller range of low-emission technologies. This could compromise energy security and lead to higher total investment costs, resulting in increased electricity prices for consumers. Table 2 shows the average annual capacity addition for global nuclear power in NZE from 1981 to 2030.   In 2022, the global deployment of new nuclear power capacity witnessed a notable upsurge, with 7.9 GW added, representing a substantial 40% increase compared to the preceding year (Ho et al., 2019). It is worth bearing in mind that China spearheaded this expansion by completing the construction of two reactors, maintaining its streak for consecutive years as the leading contributor to global nuclear power capacity augmentation. It is noteworthy that the projects were successfully completed in various other nations, including Finland, Korea, Pakistan, and the United Arab Emirates. Additionally, significant strides were made in the initiation of new construction endeavors, with the commencement of construction activities on five reactors in China, two reactors in Egypt, and one reactor in Turkey (Hickey et al., 2021). Nuclear power's significance in power system adequacy Nuclear power facilities have persistently underpinned the dependability of power systems, thereby bolstering the adequacy of the system. Across diverse national contexts, nuclear power plants have historically maintained operational readiness, manifesting availability rates consistently exceeding 90%, thereby demonstrating their reliability in power generation. Given that a substantial proportion of nuclear power capacity directly contributes to system adequacy metrics, its significance in fortifying system reliability and adequacy significantly outweighs its proportional contribution to the total power capacity (Orikpete and Ewim, 2024; Frilingou et al., 2023; Raj, 2023; Ragosa et al., 2024). The contribution of nuclear power to system adequacy is demonstrated by the consistent trajectory of its share within the aggregate dispatchable power capacity, hovering at around 8% between 2021 and 2050 within the NZE framework (IEA, 2022; OIES, 2024). Dispatchable electricity sources have historically constituted the primary mechanism for ensuring system adequacy, a trend that endures within the NZE paradigm, especially as electricity systems undergo evolution marked by an escalating reliance on variable solar photovoltaic (PV) and wind energy sources (Marzouk, 2024; Moon et al., 2024; Wisnubroto et al., 2023). It is indisputable that unabated fossil fuel resources predominantly dominate dispatchable capacity; however, their prominence clearly diminishes, declining by a quarter by 2030 within the NZE framework and experiencing a precipitous decline thereafter. Unabated coal-fired power, currently the most substantial dispatchable source, anticipates a decline exceeding 40% in operational capacity by 2030 and approaches a state of negligible contribution by the early 2040s. Conversely, the unabated natural gas-fired power capacity exhibits a sustained level of stability until 2030, primarily driven by the necessity to offset the diminishing role of coal; nonetheless, it subsequently undergoes a rapid descent throughout the 2030s. Oil, constituting a comparatively minor contributor, experiences rapid phasing out across most regions, except for remote locales, within the delineated scenario (Makarov et al., 2023; Ren et al., 2024). Figure 4 highlights the global capacity of dispatchable power categorized by category in the scenario of achieving NZE by 2050.   In this context, fossil fuels equipped with Carbon Capture, Utilization, and Storage (CCUS) technology have emerged as notable contributors to bolstering system adequacy. Yet, nuclear power remains a steady contributor to the power system flexibility. In advanced economies, the proportion of hour-to-hour flexibility is projected to increase from approximately 2% to 5% by 2050. Similarly, in EMDEs, this ratio is anticipated to increase from 1% to 3% over the same temporal span (Jenkins et al., 2018). It is worth highlighting that in France, where nuclear power fulfills the lion's share of electricity generation requisites, flexibility has been ingrained within reactor designs (Ho et al., 2019). This feature enables certain plants to swiftly modulate their output to align with the fluctuating electricity supply and demand, operating in a load-following mode (Chen, 2024; Jin and Bae, 2023; Kanugrahan and Hakam, 2023). Although many nations have not habitually engaged nuclear power in such operational dynamics, a considerable number of reactors are capable of performing load-following operations with minimal or no requisite technical adaptations (Caciuffo et al., 2020). Figure 5 demonstrates the hour-to-hour power system flexibility based on the source and regional grouping in the NZE by the 2050 scenario.   Innovation holds promise in enhancing the flexibility of nuclear power. Advanced technological advancements, such as SMRs, can facilitate nuclear reactors to adjust their electricity output with greater ease, as illustrated in Figure 6 (Ho et al., 2019; Lee, 2024; Wisnubroto et al., 2023). Moreover, these technologies offer the prospect of enabling reactors to transition toward generating heat or producing hydrogen either independently or concurrently with electricity generation. Initiatives are underway to disseminate information to policymakers and planners regarding the potential cost advantages associated with enhancing nuclear power flexibility.  Figure 6 demonstrates the nuclear system augmented by wind turbines for trigeneration.   Investment in nuclear power The renaissance of nuclear power within the NZE trajectory necessitates a substantial surge in investment in the coming decades. This surge is envisaged to encompass the construction of new nuclear reactors and extension of operational lifespans for existing facilities. Within this scenario, annual global investment in nuclear power is poised to escalate to exceed US$100 billion during the initial half of the 2030s within the NZE framework, surpassing the threefold average investment level of US$30 billion recorded during the 2010s (IEA, 2022). Subsequently, investment levels are expected to gradually decline as the imperative for dispatchable low emissions generating capacity diminishes, tapering to approximately US$70 billion by the latter half of the 2040s (Kharitonov and Semenova, 2023; Zimmermann and Keles, 2023). Over the period spanning from 2021 to 2050, the allocation of investment toward nuclear power constitutes a fraction representing less than 10% of the aggregate investment dedicated to low-emission sources of electricity (IEA, 2022). By comparison, within this framework, the annual investment in renewable energy experiences a notable escalation, escalating from an average of US$325 billion during the interval from 2016 to 2020 to US$1.3 trillion during the period 2031–2035 (EEDP, 2023; Rekik and El Alimi, 2024d). It is worth noting that the latter consideration elucidates the rationale behind the disproportionate allocation of investment toward advanced economies in later decades. China, for instance, requires an annual expenditure averaging close to US$20 billion on nuclear infrastructure by 2050, representing a nearly twofold increase compared to the average observed during the 2010s (Aghahosseini et al., 2023; Vujić et al., 2012). Conversely, other EMDEs witness a tripling of investment, reaching approximately US$25 billion per year, on average. In contrast to advanced economies, the imperative for investment in these nations is more pronounced in the period leading up to 2035 (Bhattacharyya et al., 2023; Khaleel et al., 2024). Thus, nuclear energy, despite its advantages as a low-carbon energy source, faces notable challenges. High capital costs and long deployment timelines, driven by complex construction and regulatory requirements, often hinder its adoption. The management of radioactive waste remains a costly and contentious issue, while safety concerns, shaped by historical incidents, continue to influence public perception. Additionally, reliance on uranium, with its geographically concentrated supply, raises geopolitical and environmental concerns. Nuclear power also competes with the rapidly advancing and cost-effective renewable energy sector, while decommissioning aging plants poses long-term financial and logistical burdens. Addressing these limitations through advanced technologies, public engagement, and international collaboration is crucial for enhancing nuclear energy's role in sustainable energy transitions. Technologies for sustainability in nuclear energy production The pursuit of sustainability in nuclear energy production has been supported by advancements in innovative technologies that enhance efficiency, safety, and environmental compatibility (Aktekin et al., 2024; Ali et al., 2024; Zheng et al., 2024; Khan et al., 2017). These technologies are crucial for positioning nuclear power as a key contributor to clean and sustainable energy transitions. Below are some of the most impactful technologies in this domain: Advanced nuclear reactors: Small modular reactors (SMRs): SMRs are compact, scalable, and safer than traditional large-scale reactors. Their modular design allows for deployment in remote locations, making them suitable for decentralized energy systems. Generation IV reactors: These reactors incorporate advanced cooling systems and fuel cycles to improve efficiency, safety, and waste reduction. Examples include sodium-cooled fast reactors and gas-cooled fast reactors. Thorium-based reactors: Thorium fuel cycle reactors use thorium-232 as an alternative to uranium, offering a more abundant and sustainable fuel source. Thorium reactors produce less nuclear waste and have a lower risk of proliferation. Fusion energy: Although still in the experimental stage, nuclear fusion promises to be a game-changing technology. Fusion produces minimal radioactive waste and harnesses abundant fuel sources like deuterium and tritium, making it a virtually limitless and clean energy solution. Molten salt reactors (MSRs): MSRs use liquid fuels or coolants, such as molten salts, which operate at lower pressures and higher temperatures. These reactors are inherently safer and have the capability to utilize a variety of fuel types, including spent nuclear fuel and thorium. Reactor safety enhancements: Passive safety systems: These systems enhance reactor safety by using natural forces like gravity, natural convection, or condensation to cool the reactor core without human intervention. Digital twin technologies: Digital simulations and monitoring of reactor systems allow for predictive maintenance and real-time safety management. Nuclear waste management technologies Fast reactors: These reactors can recycle spent fuel, reducing the volume and radioactivity of nuclear waste. Deep geological repositories: Advances in geotechnical engineering have improved the safety of long-term waste storage in deep geological formations. Hybrid nuclear-renewable systems: Combining nuclear power with renewable energy sources like wind and solar can optimize energy production and grid stability. Hybrid systems leverage the reliability of nuclear energy with the intermittency of renewables for a balanced, low-carbon energy mix. Artificial intelligence (AI) and machine learning: AI and machine learning technologies are being deployed to enhance reactor performance, optimize fuel usage, and improve operational safety. Predictive analytics also play a critical role in maintenance and risk assessment. Fuel advancements: High-assay low-enriched uranium (HALEU): HALEU fuels enable reactors to operate more efficiently and reduce waste. Accident-tolerant fuels (ATFs): These are designed to withstand extreme conditions, reducing the likelihood of core damage during accidents. Integrated energy systems: Nuclear reactors are increasingly being used for purposes beyond electricity generation, such as hydrogen production, district heating, and desalination. The integration of digital technologies, including AI and machine learning, coupled with fuel advancements like HALEU and accident-tolerant fuels, highlights the continuous evolution of the nuclear sector. These innovations not only enhance efficiency and safety but also expand the applications of nuclear energy beyond electricity generation to include hydrogen production, desalination, and district heating. Despite these technological advancements, the sustainable deployment of nuclear energy requires robust policy frameworks, increased investments, and public acceptance. Addressing these challenges is critical to unlocking the full potential of nuclear power in achieving global energy security and NZE by 2050. [...] Discussion and policy implications Nuclear power presents a compelling case as a sustainable energy source owing to its several key advantages. Its high-energy density allows for substantial electricity generation from minimal fuel, enabling continuous operation, unlike intermittent renewables, such as solar and wind (Rekik and El Alimi, 2023a, 2023b), thus contributing significantly to grid stability (Cramer et al., 2023). Furthermore, nuclear power is a crucial tool for emissions reduction, boasting virtually no greenhouse gas emissions during operation. Although lifecycle emissions associated with fuel processing and plant construction exist, they remain comparable to or lower than those of renewables. Several studies have reported on the energy production capabilities of nuclear power and its contribution to reducing greenhouse gas emissions compared to other energy sources. A key aspect of these analyses is quantifying the potential contribution of nuclear power to reducing greenhouse gas emissions and achieving net zero targets. However, direct comparison of reported data can be challenging due to variations in model assumptions, geographic scope, and time horizons.  [...] From another perspective, radioactive waste generation poses a significant challenge to nuclear power because of its long-term hazardous nature. This necessitates meticulous management and disposal strategies to mitigate potential social impacts. These impacts arise from perceived or actual risks to human health and the environment, fueling public anxiety and opposition to nuclear power, which is often expressed through protests and legal action (Kyne and Bolin, 2016; Nilsuwankosit, 2017; Ram Mohan and Namboodhiry, 2020). Additionally, communities near waste sites can experience stigmatization, resulting in decreased property values and social isolation. The persistent nature of radioactive waste also raises intergenerational equity issues, burdening future generations with its management (Deng et al., 2020; Mason-Renton and Luginaah, 2019). Thus, transparent communication and stakeholder engagement are crucial for building public trust and ensuring responsible radioactive waste management (Dungan et al., 2021; Sančanin and Penjišević, 2023). There are various radioactive waste disposal pathways, each with unique social and technical considerations. Deep geological disposal, an internationally favored method for high-level waste disposal, involves burying waste deep underground for long-term isolation. Interim storage provides a secure temporary holding until a permanent solution is obtained (Chapman, 1992; Grambow, 2022). Reprocessing spent nuclear fuel recovers reusable materials, reducing high-level waste but creating lower-level waste. Advanced reactor technologies aim to minimize waste and improve safety, potentially converting long-lived isotopes into shorter-lived isotopes (Dixon et al., 2020; Englert and Pistner, 2023). Choosing a disposal pathway requires careful evaluation of factors, such as waste type and volume, geology, feasibility, cost, and public acceptance, often leading to a combined approach. Ongoing community engagement and addressing concerns are essential to safe and responsible waste management. Effective management and disposal of this waste require advanced technological solutions, robust regulatory frameworks, and long-term planning to ensure safety and sustainability (Abdelsalam et al., 2024; Rekik and El Alimi, 2024a), Moreover, its relatively small land footprint compared to other energy sources, especially solar and wind farms, minimizes the ecosystem impact and makes it a sustainable option in densely populated areas (Poinssot et al., 2016; Sadiq et al., 2022). Nuclear power also enhances energy security by reducing reliance on fossil fuels, which is particularly valuable in countries with limited domestic resources (Cramer et al., 2023; Ichord Jr., 2022). Additionally, nuclear power exhibits synergy with other clean technologies, providing a stable baseload complementing variable renewables and facilitating hydrogen production for diverse energy applications (Abdelsalam et al., 2024; El-Emam and Subki, 2021; Salam and Khan, 2018; Rekik, 2024; Rekik and El Alimi, 2024e). Finally, ongoing advancements in reactor design, such as SMRs, promise enhanced safety, reduced costs, and greater deployment flexibility, further solidifying the role of nuclear power in decarbonizing the electricity sector (Aunedi et al., 2023). Supportive policies and international cooperation are essential for fully realizing the potential of nuclear energy. Streamlined licensing and regulatory frameworks are crucial for reducing deployment time and costs and ensuring that safety standards are met efficiently (Gungor and Sari, 2022; Jewell et al., 2019). Furthermore, incentivizing investments through financial tools such as tax credits and loan guarantees can attract private capital and create a level-playing field for nuclear power (Decker and Rauhut, 2021; Nian and Hari, 2017; Zimmermann and Keles, 2023). Addressing public perception through education and engagement is equally important for building trust and acceptance. Moreover, international cooperation is vital in several respects. The disposal of radioactive waste remains a complex issue, requiring careful long-term management and securing geological repositories to prevent environmental contamination owing to the long half-life of some isotopes. Furthermore, while modern reactors incorporate advanced safety features, the potential for accidents such as Chernobyl and Fukushima remains a concern because of the potential for widespread radiation release and long-term health consequences (Denning and Mubayi, 2016; Högberg, 2013; Wheatley et al., 2016). Moreover, the high initial costs associated with design, construction, and licensing present significant barriers to new nuclear projects, particularly in developing countries. In addition, the risk of nuclear proliferation, in which technology intended for peaceful energy production is diverted for weapons development, necessitates stringent international safeguards, as highlighted by following reference. Public perception also plays a crucial role because negative opinions and concerns about safety and waste disposal can create opposition to new projects. Finally, the decommissioning of nuclear plants at the end of their operational life is a complex and costly process that requires substantial resources and expertise to dismantle reactors and manage radioactive materials. [...] Conclusion The role of nuclear power in sustainable energy transition is multifaceted and significant. As nations worldwide strive to transition toward more environmentally friendly energy systems, nuclear power has emerged as a crucial component of the decarbonization journey. Its capacity to provide low-carbon electricity, mitigate climate change, and contribute to energy security underscores its importance in the broader context of sustainable energy transitions. Despite this, challenges such as safety, waste management, and public perception must be addressed to fully harness the potential of nuclear power to achieve sustainability goals. By leveraging policy frameworks, technological innovations, and international cooperation, nuclear power can play a vital role in shaping the future of sustainable energy transition on a global scale. In this context, EMDEs exert a substantial influence on global growth, collectively accounting for over 90% of the aggregate, with China positioned to emerge as the foremost nuclear power producer before 2030. Concurrently, advanced economies have witnessed a notable 10% increase in their nuclear power capacity. This augmentation is attributed to the commissioning of new facilities, which offset retirements, manifestly observed in nations such as the United States, France, the United Kingdom, and Canada. Furthermore, there is a marked escalation in annual global investment in nuclear power, surging from US$30 billion throughout the 2010s to surpass US$100 billion by 2030. This upward trajectory is robustly sustained, remaining above US$80 billion by 2050. In conclusion, the remarkable decline in the levelized cost of electricity (LCOE) for solar PV and wind power over the past decade has positioned renewable energy as a cost-competitive and viable alternative to fossil fuels in many regions. The over 80% reduction in LCOE for utility-scale solar PV from 2010 to 2022 exemplifies the economic feasibility of renewables. Concurrently, the steady growth in renewable energy capacity, spearheaded by solar and wind energy, underscores their critical role in the global energy transition. With renewable electricity capacity surpassing 3300 GW in 2023 and accounting for over one-third of the global power mix, renewable energy is undeniably at the forefront of efforts to achieve a sustainable, low-carbon energy future. Declaration of conflicting interestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.FundingThe authors received no financial support for the research, authorship, and/or publication of this article.ORCID iDSassi Rekik https://orcid.org/0000-0001-5224-4152Supplemental materialSupplemental material for this article is available online.ReferencesAbbasi K, Jiao Z, Shahbaz M, et al. (2020) Asymmetric impact of renewable and non-renewable energy on economic growth in Pakistan: New evidence from a nonlinear analysis. Energy Exploration & Exploitation 38(5): 1946–1967. Crossref. Web of Science.Abdelsalam E, Almomani F, Azzam A, et al. 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Abstract This analysis examines Ukraine’s integration into European defence cooperation through the SAFE fund, highlighting its unique status as a semi-integrated security partner (SISP) despite not being an EU member. Ukraine’s pursuit of NATO and EU membership is driven by security concerns, economic benefits, and cultural alignment with Europe, particularly in response to Russian aggression since 2014. NATO membership promises collective defence under Article 5, enhanced military capabilities, and political reforms, while EU accession offers economic integration, governance improvements, and strengthened defence capacities. Russia opposes Ukraine’s NATO aspirations due to security fears and the potential democratic contagion threatening its regime. Still, it is more accepting of Ukraine’s EU membership, viewing it as an economic rather than a military alliance. Historical assurances to the USSR against NATO expansion eastward fueled Russia’s objections. Ukraine’s integration into European structures symbolises a break from Russian influence but poses challenges of escalation and geopolitical tension. The SAFE fund’s inclusion of Ukraine reflects the evolving boundaries of EU defence cooperation amid the ongoing conflict. Key Words: SAFE, EU, Ukraine, Russia, Security Introduction In the first article on SAFE[EE1] , published once again in the World & New World Journal, the analysis concluded on a somewhat skeptical note: “It appears that despite some initial intentions to end the Ukrainian war as early as April 2022, it is the European elites, especially French, German and Polish, who stand for the prolongation, if not escalation, of the Ukrainian war, potentially at the expense of the security of the whole European continent and definitely at the expense of Ukrainians and their country”.[1] Moreover, the author, adopting a critical perspective, raised some questions about the consequences of the ongoing war. Firstly, the longer the war continues, the more destroyed Ukraine becomes and the greater the number of Ukrainians killed. Secondly, the longer the war continues, the greater the likelihood of escalation, which poses a threat to the entire European continent. Thirdly, despite mainstream media reports, the Russian Federation appears to have adapted to operating effectively despite the sanctions, which may strengthen its economy in the short to medium term and, more importantly, bring it closer to cooperating with China and North Korea. Finally, since every war serves as a testing ground for new technologies, the Russians, especially the North Koreans and the Chinese, are gaining invaluable insight into the nature of modern warfare, which is often referred to as the next Revolution in Military Affairs (RMA).The inclusion of Ukraine in the SAFE fund, despite its non-EU status, suggests a functional military alliance. This analysis will, therefore, explore how such an alliance redefines the line between EU and non-EU defence cooperation, specifically in the context of Ukraine as a semi-integrated security partner (SISP), and how this semi-integration is likely to influence Russia’s threat perception.  European Aspirations of Ukraine  Source: https://www.freeworldmaps.net/europe/political.html Ukraine’s pursuit of NATO and EU membership reflects a complex approach driven by security, economic, political, and cultural imperatives, particularly in the context of its ongoing conflict with Russia and its aspiration for a stable and prosperous future. Ukraine’s engagement with NATO began in the early 1990s, with formal steps toward membership marked by the 2008 Bucharest Summit, which decided that Ukraine would become a member.[2] This commitment was reaffirmed at the 2024 Washington Summit, emphasising Ukraine’s “irreversible path” to NATO integration. For the EU, Ukraine applied for membership on February 28, 2022, shortly after Russia’s full-scale invasion, highlighting the urgency driven by security concerns.[3]  The EU granted candidate status in June 2022, and accession negotiations opened in December 2023, reflecting strong political support. The primary rationale for NATO membership is security, particularly in response to Russia’s actions since 2014, including the annexation of Crimea and the 2022 invasion. Ukraine views NATO’s collective defence mechanism, especially Article 5, as a credible deterrent to further aggression. NATO has provided significant support, including EUR 50 billion in 2024, with nearly 60% of the funding coming from European Allies and Canada. The alliance has also established NATO Security Assistance and Training for Ukraine (NSATU) at the 2024 Washington Summit.[4] EU membership, although not primarily a military-focused endeavour, enhances political stability by reducing vulnerability to external threats through economic and diplomatic ties. Recent developments in June 2025, such as NATO Defence Ministers agreeing on new capability targets and statements from Baltic states calling for concrete steps at the upcoming 2025 NATO Summit in The Hague, underscore ongoing international backing.[5] However, challenges remain, with some ambiguity about explicit mentions in NATO communiques and concerns over U.S. political shifts, as noted by Estonian President Alar Karis on June 9, 2025.[6] EU membership is central to Ukraine’s economic aspirations, offering access to the European single market, financial aid, and investment crucial for post-war reconstruction. The EU has provided over €108 billion in financial, humanitarian, and military assistance since the war began, with the Ukraine Facility offering up to €50 billion from 2024 to 2027 for recovery and reforms.[7]  This support aligns with Ukraine’s goal of modernising its economy and institutions, including democratic governance and anti-corruption measures, as outlined in the EU’s 2022 Opinion and subsequent reports. NATO membership, while primarily security-focused, also implies a political alignment with Western democratic values, complementing European Union integration. Ukraine’s progress in aligning with NATO standards, as demonstrated by the removal of the need for a Membership Action Plan (MAP) at the 2023 Vilnius Summit, reflects its commitment to reforms that enhance both security and political stability.[8] Ukraine frames its European aspirations as a return to its historical and cultural roots, emphasising shared democratic values, human rights, and a rejection of Russian influence. This narrative is reflected in strong public support, with polls showing over 80% favouring NATO membership and 85-90% supporting EU membership.[9] The 2014 Euromaidan protests, sparked by the rejection of an EU Association Agreement and Russia’s subsequent actions, have solidified this national consensus. Constitutional amendments in 2019 formalised NATO and EU membership as strategic objectives, underscoring cultural alignment with Europe. To sum up, both NATO and EU memberships, according to Ukrainian society, represent a definitive break from Russia’s sphere of influence, ensuring long-term independence and countering Russian attempts to control post-Soviet states. This geopolitical strategy is evident in Ukraine’s legislative commitments, such as the 2017 parliamentary decision making NATO membership a strategic objective and the 2022 reiteration of membership requests following Russia’s illegal annexations.  Recent EU-NATO cooperation, highlighted in a May 28, 2025, meeting focusing on Ukraine, reinforces this alignment and highlights international solidarity.[10] Russian views on Ukraine’s NATO and EU membership Russia's objections to Ukraine joining NATO are driven by security, geopolitical, and ideological fears, with a particular emphasis on military alliances and democratic contagion. In contrast, Russia accepts Ukraine's EU membership, viewing it as an economic union with fewer security implications. Russia views NATO's eastward expansion as a direct threat to its national security. The potential inclusion of Ukraine would bring NATO's military infrastructure, including troops and missile defence systems, closer to Russian borders. This is seen as a violation of Russia's perceived security interests, especially given NATO's history of collective defence under Article 5. For instance, NATO's response to Russia's 2014 annexation of Crimea and the 2022 full-scale invasion has intensified cooperation with Ukraine, further heightening tensions. [11] Ukraine's historical ties to Russia, rooted in shared Soviet and imperial pasts, make its potential NATO membership a significant loss for Russia's sphere of influence. The shift toward Western alignment is perceived as a strategic defeat, as it reduces Russia's ability to exert influence in Eastern Europe. This is evident in Russia's actions, such as the annexation of Crimea and support for separatists in Donbas, which are seen as responses to Ukraine's NATO aspirations.[12] Russia specifically objects to the military aspects of NATO membership, fearing the deployment of foreign troops or advanced military systems near its borders. This concern is highlighted in statements from Kremlin officials, such as Dmitry Peskov, Press Secretary of the President of the Russian Federation, who have emphasised that military alliances pose a different threat compared to economic unions. [13] Western experts often claim that Russia's real objection is the democratic implications of Ukraine's alignment with the West. A successful, democratic Ukraine could serve as a model for democratic movements within Russia, challenging the authoritarian stability of Putin's regime. This fear is evident in Russia's reactions to democratic breakthroughs, such as the Orange Revolution (2004) and EuroMaidan (2013–14), which were met with military actions like annexing Crimea and supporting separatist conflicts in Donbas, resulting in over 14,000 deaths over eight years.[14] NATO Expansion: What Gorbachev Heard Russia often cites the alleged promise made during the fall of the Soviet Union that NATO would not expand eastward. This grievance is part of Russia's broader narrative of being encircled by Western institutions, fueling its opposition to Ukraine's NATO aspirations.  According to recently publicised documents, Western leaders gave Mikhail Gorbachev multiple assurances throughout 1990 and into 1991 that NATO would not expand eastward, particularly in the context of German unification and the broader European security architecture.[15] James Baker, U.S. Secretary of State, repeatedly assured Gorbachev in February 1990 that if Germany were to unify and remain in NATO, NATO's jurisdiction would not extend "one inch eastward" beyond its current position. Baker presented Gorbachev with a choice between a united Germany outside NATO or a united Germany in NATO with guarantees against eastward expansion. Gorbachev stated that any expansion of NATO would be unacceptable. West German Foreign Minister Hans-Dietrich Genscher publicly stated in January 1990 that NATO should rule out expansion eastward and proposed a special status for the former East German territory within NATO. This "Tutzing formula" became the basis of diplomatic discussions with Gorbachev, where the idea of no eastward expansion applied not only to East Germany but also to other Eastern European countries. British Foreign Minister Douglas Hurd and Prime Minister John Major also conveyed to Gorbachev and other Soviet officials that NATO expansion was not being considered and that there was no plan to include Eastern European countries in NATO at that time. Major personally assured Gorbachev in March 1991 that strengthening or expansion of NATO was not planned. French President François Mitterrand expressed support for gradually dismantling military blocs and emphasised the need to create security conditions favourable to the Soviet Union. He promised to detail guarantees to Gorbachev regarding his country's security. Margaret Thatcher emphasised the transformation of NATO into a less militarily threatening alliance and the role of the Conference on Security and Cooperation in Europe (CSCE) as an inclusive forum that would incorporate the Soviet Union into discussions about Europe's future security. She stressed the importance of giving the Soviet Union confidence that its security would be assured. NATO Secretary General Manfred Woerner told a Russian delegation in 1991 that the NATO Council and most member states were against NATO expansion and that isolating the USSR from the European community should be avoided. President George H.W. Bush assured Gorbachev on several occasions, including at the Malta summit in 1989 and the Washington summit in 1990, that the U.S. sought no unilateral advantage and that German unification within NATO would not be directed against the Soviet Union. He emphasised the significance of the CSCE process and the transformation of NATO in response to Soviet security concerns. Overall, these assurances created a "cascade" of promises emphasising that NATO would not expand eastward and that Soviet security interests would be respected as part of a new European security architecture. Gorbachev agreed to German unification in NATO based on these assurances and his belief in the potential for a "common European home" that would include the USSR. However, these assurances were mainly given in verbal form or memos rather than formal treaties, and subsequent NATO expansion in the late 1990s led to later Soviet and Russian complaints about being misled. In summary, the significance of these promises lies in their role in enabling German unification within NATO, shaping Soviet expectations of post-Cold War security, influencing European security architecture, and later contributing to disputes over NATO enlargement and Russia's perception of being misled by the West. EU Membership: A More Accepting Stance In contrast, Russia's stance on Ukraine's potential membership in the EU is markedly different. Official statements, such as those from Vladimir Putin, indicate that Russia has "nothing against" Ukraine joining the EU, viewing it as an economic union rather than a military alliance.  This acceptance is likely due to the EU's focus on economic integration, which does not pose the same security threat as NATO's military framework.[16] Dmitry Peskov's comments reinforce this distinction, noting that Russia "won't dictate" its approach to EU membership but has a different approach to military alliances. This reflects Russia's willingness to engage in economic partnerships while opposing military alliances. While Russia accepts EU membership, it remains wary of the broader implications, such as increased Western influence and potential democratic reforms in Ukraine. However, these concerns are secondary to its objections to NATO, as the EU does not involve military commitments. Public opinion in Ukraine, as noted in sociological surveys, shows strong support for NATO membership, with 64% in favour in January 2022, particularly in western Ukraine and Kyiv. This contrasts with Russia's position, highlighting the geopolitical divide. Additionally, former European Commission President Jean-Claude Juncker has cautioned against Ukraine joining NATO, suggesting that internal debates within the West may align with Russia's narrative that NATO expansion is premature. Ukraine - de facto NATO and EU member? – opportunities and challenges NATO Experts claim that Ukraine's membership in NATO would likely provide a strong security guarantee under Article 5, deterring Russian aggression by ensuring collective defence. This means that an attack on Ukraine would be treated as an attack on all NATO members, including major powers such as the United States and the United Kingdom. This could potentially stabilise the region, reducing the risk of further conflict.[17] Ukraine's large and experienced military, with significant combat expertise, would also strengthen NATO's overall defence capabilities, particularly in modern warfare, such as drone and cyber operations. Membership in NATO would likely enhance Ukraine's military capabilities through the organisation's training programs and exercises, thereby improving interoperability with allied forces. Programs like the NATO Security Assistance and Training for Ukraine (NSATU), established in 2024, coordinate equipment and training with hubs in Eastern Europe. This would align Ukraine's forces with NATO standards, enhancing operational effectiveness, as demonstrated by past contributions to NATO-led missions in Bosnia and Kosovo.[18] It seems likely that NATO membership would attract more foreign investment, especially in defence, with Western companies already coproducing munitions in Ukraine. Financial support, such as the €40 billion pledged in 2024, would aid reconstruction and economic recovery, as outlined in the NATO Pledge of Long-Term Security Assistance. Politically, it could drive reforms in governance and anti-corruption, with strong public support (75% in favour) ensuring commitment.[19] Finally, policy-makers in the West also hope that Ukraine’s NATO membership could curb or even end Russian imperial ambitions, sending a clear message that the subjugation of Ukraine is futile. However, it could also escalate tensions with Russia. “While there is widespread recognition that the outcome of Russia’s war in Ukraine will shape the future of international relations, […] the alliance appears to be deeply divided on the issue. Objections centre around the potential for a further dangerous escalation in the current confrontation with the Kremlin. Opponents argue that by inviting Ukraine to join, NATO could soon find itself at war with Russia. Meanwhile, many supporters of Ukrainian NATO membership believe keeping the country in geopolitical limbo is a mistake that only serves to embolden Moscow and prolong the war”. [20] The EU The alleged opportunities resulting from Ukraine’s already de facto EU membership are numerous. According to experts, Ukraine's potential EU membership would likely enhance economic integration by granting access to the EU's single market, facilitating the free movement of goods, services, capital, and people. This could increase Ukraine's trade by 40% to 140% between 2030 and 2040, compared to the 2010-2019 averages, driven by foreign direct investment (FDI) and governance reforms.[21] The Deep and Comprehensive Free Trade Area (DCFTA), which has been in force since 2017, would be further strengthened, thereby boosting economic ties with the EU.[22] The EU-Ukraine agreement improves the competitiveness of European businesses in the Ukrainian market and vice versa. Overall, for trade in goods, the agreement eliminated the majority of tariffs – 98.1% for the EU and 99.1% for Ukraine. For example, import duties on most agricultural goods imported into the EU were reduced to zero in 2016. Tariff rate quotas apply to the remaining farming goods that are not liberalised. The management of these quotas is done either on a first-come, first-served basis or via import licences. It seems likely that EU accession would drive reforms in governance, rule of law, and anti-corruption measures. Currently, Ukraine ranks poorly in governance metrics, performing worse than Russia and Belarus; however, EU conditionality could help elevate it to a well-governed state.  With 78% of Ukrainians supporting EU entry, there is strong public backing for these reforms.[23] Ukraine's membership is also likely to enhance EU security and defence capabilities. Ukraine's rapidly growing defence industry, including investments like Baykar's $100 million for drone production and a joint venture with Rheinmetall for artillery shells, would bolster the EU's defence ecosystem.[24]  With one of Europe's largest standing armies (around 1 million personnel) experienced in modern warfare, Ukraine could contribute valuable expertise.  The establishment of an EU Defence Innovation office in Kyiv further supports Ukraine's integration into European defence programs. There may be additional benefits in energy security, with Ukraine exporting low-carbon electricity and hydrogen to the EU, and technological advancements, particularly in drone and cyber capabilities, positioning Ukraine as a leader in tech R&D. Labour migration could help alleviate EU labour shortages, with projections of 3-6 million additional Ukrainian immigrants by 2029-2050. Conclusion In conclusion, Ukraine’s integration into European defence cooperation, particularly through NATO and the EU, represents a strategic shift that may strengthen European security and counter Russian influence. NATO membership offers Ukraine vital collective defence guarantees, enhances military capabilities, and could deter further Russian aggression, though it risks escalating tensions.  EU membership promises significant economic benefits, governance reforms, and deeper political alignment with Europe. Russia’s opposition centres mainly on NATO’s military threat, while it shows more acceptance of EU economic ties. Overall, Ukraine’s semi-integrated status in European defence frameworks exemplifies evolving security dynamics with profound implications for the regional security complex in Europe. References [1]  Sliwinski, K. (2025, July 7). Can SAFE make Europe safe? From civilian to military power Europe. World & New World Journal. https://worldandnewworld.com/safe-europe-military-power-3/[2] Relations with Ukraine. (2025, March 11). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/topics_37750.htm[3] Ukraine. European Commission. https://enlargement.ec.europa.eu/european-neighbourhood-policy/countries-region/ukraine_en[4]  Relations with Ukraine. (2025, March 11). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/topics_37750.htm[5] NATO Defence Ministers agree new capability targets to strengthen the Alliance. (2025, June 5). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/news_235900.htm[6] Estonian president: Ukraine’s NATO membership still possible despite Trump. (2025, June 9). European Pravda. https://www.eurointegration.com.ua/eng/news/2025/06/9/7213345/[7] Ukraine. European Commission. https://enlargement.ec.europa.eu/european-neighbourhood-policy/countries-region/ukraine_en [8] Vilnius Summit Communiqué. (2023, July 11). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/official_texts_217320.htm[9] Imagine that a referendum on Ukraine’s accession to the European Union (EU) is currently taking place. How would you vote? (2024, October 8). Statista. Https://Www.Statista.Com/Statistics/1284801/Ukraine-Opinion-on-Eu-Accession/. https://www.nato.int/cps/en/natohq/official_texts_217320.htm Also: Are you for or against Ukraine joining the North Atlantic Treaty Organization (NATO)? (2025, January 6). Statista. https://www.statista.com/statistics/1294468/public-opinion-on-ukraine-joining-nato/[10] NATO and the European Union unite for Ukraine at a NAC - PSC meeting. (2025, May 28). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/news_235693.htm[11] NATO’s response to Russia’s invasion of Ukraine. (2025, February 17). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/topics_192648.htm[12] Person, R., & McFaul, M. (2022). What Putin Fears Most. Journal of Democracy, 33(2), 18–27. https://www.journalofdemocracy.org/articles/what-putin-fears-most/[13] Körömi, C. (2025, February 18). Russia: Ukraine has a ‘sovereign right’ to join EU — but not NATO. POLITICO. https://www.politico.eu/article/dmitrt-peskov-kremlin-ukraine-sovereign-right-join-eu-not-nato/[14] Person, R., & McFaul, M. (2022). What Putin Fears Most. Journal of Democracy, 33(2), 18–27. https://www.journalofdemocracy.org/articles/what-putin-fears-most/[15] National Security Archive. (2017, December 12). NATO expansion: What Gorbachev heard. The George Washington University. https://nsarchive.gwu.edu/briefing-book/russia-programs/2017-12-12/nato-expansion-what-gorbachev-heard-western-leaders-early[16] Putin says Russia has “nothing against” Ukraine joining EU. (2022, June 17). REUTERS. https://www.reuters.com/article/world/putin-says-russia-has-nothing-against-ukraine-joining-eu-idUSKBN2NY0NK/[17]  Relations with Ukraine. (2025, March 11). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/topics_37750.htm[18] Sendak, C., & Timtchenko, I. (2025, January 16). Between Now and NATO: A Security Strategy for Ukraine. Center for European Policy Analysis (CEPA). https://cepa.org/comprehensive-reports/between-now-and-nato-a-security-strategy-for-ukraine/[19] Relations with Ukraine. (2025, March 11). North Atlantic Treaty Organization. https://www.nato.int/cps/en/natohq/topics_37750.htm  [20] Grod, P. (2024, July 11). Five reasons why Ukraine should be invited to join NATO. North Atlantic Treaty Organization. https://www.atlanticcouncil.org/blogs/ukrainealert/five-reasons-why-ukraine-should-be-invited-to-join-nato/[21] Darvas, Z., Dabrowski, M., Grabbe, H., Léry, L., Moffat, A., Sapir, G., & Zachmann, G. (2024, March 7). Ukraine’s path to European Union membership and its long-term implications. Bruegel. https://www.bruegel.org/policy-brief/ukraines-path-european-union-membership-and-its-long-term-implications[22] EU-Ukraine Deep and Comprehensive Free Trade Area. (2024, March 7). European Commission. https://trade.ec.europa.eu/access-to-markets/en/content/eu-ukraine-deep-and-comprehensive-free-trade-area[23] Darvas, Z., Dabrowski, M., Grabbe, H., Léry, L., Moffat, A., Sapir, G., & Zachmann, G. (2024, March 7). Ukraine’s path to European Union membership and its long-term implications. Bruegel. https://www.bruegel.org/policy-brief/ukraines-path-european-union-membership-and-its-long-term-implications [24] Khachatryan, A. et.al. (2024, June 19). The Benefits and Opportunities of Ukraine’s EU Accession. Tony Blair Institute for Global Change. https://institute.global/insights/geopolitics-and-security/the-benefits-and-opportunities-of-ukraines-eu-accession

Abstract European states currently lack a clear joint strategy on China and a coordinated approach to US–China competition. This article offers a novel perspective on the challenges for European approaches to this issue due to an omnipresent transatlantic component and the risk of an alliance dilemma. Illustratively focusing on France, Germany and the UK, it demonstrates that Europeans are facing a transatlantic alliance dilemma with the risks of abandonment and entrapment. It argues that Europe needs to strike a balance between its dependence on Washington, especially with regard to European security, while fearing entrapment by the US approach towards Beijing as it aims to maintain economic ties with China. The article concludes that the ramifications of this dilemma can be mitigated through a distinctly European approach to China, strengthening European coordination on China and bolstering European strategic autonomy. As a conceptual piece rather than a full empirical analysis, this article therefore unpacks the strategic challenge and lays the groundwork for further empirical works on the topic. Introduction Strategic competition between the US and China plays out in many realms of international affairs, ranging from global trade to security in the Indo-Pacific. European states are directly affected by this dynamic as they maintain critical ties with both sides. Albeit allies of the US through NATO, Europeans have been reluctant to align with the US on its approach to the Indo-Pacific and China, which is currently characterised by the quest to win the strategic competition with Beijing in all areas of international affairs (see Leoni 2023). Furthermore, Europe maintains close economic ties with Beijing, and imports from China to the EU have most recently increased (Lovely and Yan 2024). European governments certainly do not pursue an approach of maintaining equidistance between the US and China: not only do they regularly emphasise their strategic proximity to Washington, but more recent events, such as the willingness of European allies to publicly adopt the wording of the communiqué from NATO’s Washington summit (NATO 2024) describing China as an ‘enabler of Russia’s war effort in Ukraine’, clearly demonstrate that the tone is changing in European capitals (Politi 2023). However, Europeans still tend to emphasise China’s role in global affairs and the importance of including it in multilateral cooperation formats. With the re-election of Donald Trump as US president, European policy on China and its approach to US–China competition will increasingly be a focus of the US administration. While the exact approach of the new US government still remains to be defined, there are good reasons to anticipate a more hawkish China policy from Washington, through which the US might seek not only to further compete with China, but to actually win this competition (see Pottinger and Gallagher 2023). When designing their approaches towards China—which, among the key European states, only Germany has done so far, with the publication of its China strategy in 2023—Europeans always face a transatlantic elephant in the room. US–China competition, a structuring feature of international relations shaping the global order today through the increasing emergence of geopolitical blocs (see Leoni and Tzinieris 2024), and China’s rising global influence in almost all areas of international affairs—ranging from climate to economics, the rules-based order and security—are forcing European states to reflect on their approach vis-à-vis Beijing (for a full discussion, see Oertel 2023; García-Herrero and Vasselier 2024). As NATO members, European states also need to adapt their strategy in light of the partnership with the US as their key ally. This article argues that European approaches towards China, as shown in the examples of France, Germany and the UK, have a distinctly transatlantic component. It illustrates how these three European states find themselves in an alliance dilemma with the US, and how the risks associated with alliances also define European approaches to China and US–China competition more broadly. As the US administration regularly refers to China as a ‘challenge’ (US Department of Defense 2022), this article alludes to this formulation through the coining of the term ‘transatlantic China challenge’ to describe the strategic challenges Europeans are facing with regard to defining their approach vis-à-vis China and US–China competition more broadly. It offers a conceptual understanding of the strategic challenges for Europe in this context and thereby constitutes a basis for a more thorough empirical analysis. The alliance dilemma and European strategy in US–China competition Originating in realist international relations theory, the alliance dilemma generally describes a situation in which states face risks resulting from joining an alliance. As demonstrated by Snyder (1984), smaller allies especially face a parallel risk of abandonment and entrapment by a hegemon, that is, the dominating power, after joining an alliance. Abandonment, in these circumstances, implies that the hegemon has no further interest in defending or supporting the smaller allies, whereas entrapment refers to a situation in which a state is ‘dragged into a conflict over an ally’s interests that [it] does not share, or shares only partially’ (see Snyder 1984, 466–8). In the context of alliances, a small state is ‘the weaker part in an asymmetric relationship, which is unable to change the nature or functioning of the relationship on its own’ (Wivel et al. 2014, 9), and hence has more limited space for action than the great powers (Wivel and Thorhallsson 2018, 267). This definition arguably applies to Europe in its partnership with the US, as demonstrated by the excessive military and economic dominance of the US as compared to the European states (see Stockholm International Peace Research Institute n.d.; International Monetary Fund 2025). The re-election of Trump as US president now presents the risk of an increased alliance dilemma for Europeans. On the one hand, Trump has announced several times that he does not value the alliance commitments within NATO and potentially would not defend European allies (Sullivan 2024), threatening Europe with abandonment. This scenario is being taken seriously in European capitals, and reflections on how ‘defending Europe with less America’ (Grand 2024) could shape up have gained traction, especially in 2024. Similarly, defence initiatives within the EU to enhance the European contribution to the continent’s security have leapt forward in recent years (see Scazzieri 2025). On the other hand, even the Biden administration had pushed Europe to align with the US approach on China (see Lynch et al. 2023). However, France and Germany in particular, as the big EU member states, have been hesitant to do so, as reflected in France’s opposition to the opening of a NATO liaison office in Tokyo (McCurry 2023) and Germany’s vote against tariffs on Chinese electric vehicles, fearing reprisals from Beijing (Demarais 2024). Trump’s foreign policy might be strongly characterised by issue linkage, which means that policies in one area will be linked to those in another area. Through this strategy, the new US administration might force Europeans into alignment and thereby entrap them, making them accept policies they are not eager to support (see Barkin and Kratz 2025). The exact policies of the Trump administration vis-à-vis European allies remain to be seen, but it is not hard to imagine a scenario in which abandonment and entrapment could emerge or increase, namely when the threat of abandonment is used to entrap allies and force them to support certain policy decisions. The alliance dilemma could play out for Europeans specifically when designing their approaches towards China (see Barkin and Kratz 2025) and formulating their response to US–China competition more generally. As noted above, among the big European states, only Germany has formally adopted a strategy on China, in 2023 (The Federal Government of Germany 2023). However, China and the response to US–China competition takes a prominent place in France’s Indo-Pacific Strategy and its strategy review (Government of France 2021; Secrétariat général de la défense et de la sécurité nationale 2022), and the UK systematically included the dimension of strategic competition in its Integrated Review and its refresh (Government of the United Kingdom 2021, 2023) and has announced an ‘audit’ of its China policy under the new government (Taylor 2024). While these strategies emphasise their individual approaches towards China and the risks stemming from US–China competition, the US has increasingly pressured Europe to align with its approach (Lynch et al. 2023) and can be expected to continue this pressure (Barkin and Kratz 2025). Through the potential issue linkage of security (openly questioned by President Trump) and China policy, Europe therefore finds itself in a new form of alliance security dilemma. European approaches to US–China competition: strategic hedging How can Europe respond to the alliance dilemma of the risks of abandonment and entrapment when it comes to its approaches to China? Reviewing the theoretical literature on the alliance dilemma, one can imagine different strategies. According to Snyder, members of alliances can choose between strategies that strengthen or weaken their commitment to the alliance. To demonstrate commitment, actions could include reassurances for the ally or demonstrations of loyalty, whereas actions to weaken the commitment to the alliance could consist of restraining the ally (mostly to reduce the risk of entrapment in a conflict), increasing bargaining power over the ally or preserving options for realignment outside the existing alliance (for a full discussion, see Snyder 1984, 466–9). Alternative strategies include hiding from cooperation, that is, ‘seeking to maximize autonomy by opting out of specific aspects of the cooperation or by setting up “bastions” in the cooperation’, or bandwagoning, through which states pursue strategies of adaptation ‘to the more powerful actors in the cooperation’ (Pedersen 2023, 442). At the moment, it seems that France, Germany and the UK ‘drive on sight’ rather than approaching the question holistically. The following analysis aims to unpack how the three European states see US–China competition, the risk of the alliance dilemma and how these reflections have played out so far in their strategies. The strategies of France, Germany and the UK on China demonstrate that their approaches are influenced by a distinctly transatlantic component and reflect the transatlantic alliance dilemma. This is visible in their (1) high awareness of the risks stemming from great power competition, (2) approaches to managing the risk of short-term abandonment, and (3) hedging to mitigate the medium- and long-term risks of abandonment and entrapment. The empirical evidence for this analysis was gathered through a qualitative analysis of European strategic documents, statements and policy decisions taken mostly during the period of the Biden administration. However, in light of the risk of a scaling-up of the alliance dilemma under the Trump administration, sources and evidence accessible by the end of January 2025 were included to illustrate the European approaches. In addition to publicly available documents and the sources mentioned above, this paper draws on conversations with policymakers and experts under the Chatham House rule. Mitigating risks from US–China competition: multilateralism instead of alignment That France, Germany and the UK are close allies with the US is clearly visible in their respective strategies on China, not least because of references they make to the importance of the alliance and their descriptions of their own positions between the two great powers. Overall, France, Germany and the UK share the perception of US–China competition and the emergence of blocs as potentially harmful to their interests. As a consequence, all three call for an inclusive multilateral order instead of falling into a logic of blocs, as the increasing competition is seen as a risk for Europe (Secrétariat général de la défense et de la sécurité nationale 2022, 9–15; The Federal Government of Germany 2020, 24–6; Government of the United Kingdom 2023, 22–6). The response of all three European powers to the emergence of blocs is multilateralism: instead of clearly aligning with the US, the French, German and British strategies call for building broader multilateral coalitions, which should, eventually, also include China (The Federal Government of Germany 2020, 23–6; Government of the United Kingdom 2023). The tone in Paris, Berlin and London towards Beijing has clearly changed over recent years; accordingly, the European capitals were also willing to support strong wording on China in the 2024 NATO summit declaration, which describes China as a ‘critical enabler’ of Russia’s ongoing war against Ukraine (NATO 2024). Albeit also recognised as a critical partner for key issues such as climate policy and trade, European states openly describe China as a ‘systemic rival’ and occasionally call out China’s behaviour, as they did, for example, in the case of a note verbale on the South China Sea (UN 2020). Nevertheless, Europe has not (yet) given in to US pressure to align with Washington’s more confrontational approach towards China (Etienne 2024). Even if European states and Washington have moved closer to each other, especially on economic security (Meyers and Reinsch 2023), the European positions on US–China competition demonstrate that Europeans are not willing to fully endorse or follow Washington’s approach—not least because European imports from China have increased in recent years (Lovely and Yan 2024). Managing the risk of short-term abandonment Since Trump’s election, the risk of abandonment by the US has been seen as increasingly high in Paris, Berlin and London.1 This is not least because Trump has openly questioned his willingness to adhere to Article 5 of the North Atlantic Treaty in the case of an armed attack on Europeans (Sullivan 2024). Europeans are especially concerned about issue linkage in this context, meaning that demands in a policy area other than security could be used as a condition. Concretely, Trump could use the threat of abandonment as leverage to compel Europe to align with the US on China policy.2 Barkin and Kratz (2025) suggest that Europe adopt a ‘carrot and stick’ approach, whereby Europe could start with an offer to the US: buying more liquified natural gas, defence goods and agricultural products from the US could mitigate the risk of abandonment. However, there is awareness among European states that coercion from the US to align on US–China policy, especially when linked to the threat of abandonment, might best be mitigated through enhancing European military capabilities—which would still leave the continent exposed to these threats, though to a lesser extent.3 Addressing the risk of medium- and long-term abandonment and entrapment: transatlantic hedging However, the risk of at least partial abandonment is not a new challenge for European strategy, and had already infused earlier strategic thinking. The shift of US strategic priorities away from Europe and to the Indo-Pacific has already been demonstrated in the allocation of resources to the different theatres. Moreover, European states have increasingly become aware that US forces will be withdrawn from their territories in the future and have concluded that they will have to step up their own commitment to European security (see Grand 2024). In parallel, there is an awareness in European capitals that showing more interest in the Indo-Pacific and giving more importance to policy on China is also a way for Europeans to demonstrate an understanding of their ally’s strategic priorities.4 Accordingly, the approaches of France, Germany and the UK to China and the Indo-Pacific also have to be understood as a commitment to the priorities of the US in order to keep this ally engaged in the European theatre and mitigate the risk of abandonment; however, European states abstain from fully aligning with the US approach, as their capabilities and strategic goals are perceived as diverging from those of the US. In this way, Europe aims to avoid entrapment over the medium term through slightly distancing itself from US policy. While all three European states also call for de-risking from China and diversification of their supply chains, maintaining strong economic ties with Beijing is a key component of their respective approaches—which contrasts with the US calls for decoupling. Furthermore, these states have never formally endorsed the US policy on China (Etienne 2024). Nevertheless, enhancing European capabilities would not only send a signal to Washington, but also qualify as hedging, understood as an ‘insurance policy’ to avoid a deterioration in US–Europe relations if the US opted for abandonment, or even as part of a move towards emancipation to reduce strategic dependencies on Washington (see Fiott 2018, 4–6). Conclusion: a transatlantic China challenge Designing their approaches to China and to US–China competition more broadly constitutes a complex strategic dilemma for European states. Paris, Berlin and London do not fully align with Washington’s approach, and it remains to be seen whether they will be willing to do so under the second Trump administration. To manage the risk of abandonment and entrapment, European states pursue different individual approaches to strategic hedging: their strategies on China and US–China competition are designed in a way that allows them to mitigate the risk of abandonment which might stem from significant transatlantic divergence, and to avoid automatic entrapment through their slight distancing from the US approach. From a theoretical perspective, this article has demonstrated that the alliance dilemma, along with the parallel fear of abandonment and entrapment by the US, is a major factor accounting for Europe’s limited strategies on China and its hedging behaviour. This article offers a conceptual analysis of the structural forces explaining European strategies, but other strategic cultures and relationships with the US could offer important complementary insights. To further analyse how individual European states design their strategies vis-à-vis China in light of the alliance dilemma and potential domestic constraints and specificities, neoclassical realism could offer an interesting analytical concept. This approach posits that structural forces set the parameters for foreign policy and treats domestic factors, including strategic culture, as intervening variables (see Rose 1998). Accordingly, it appears well suited for foreign policy analysis, and has indeed gained popularity in the field in recent years (see, for example, Martill and Sus 2024; Meibauer et al. 2021; Weber 2024). Empirically, this article constitutes a conceptual starting point rather than an exhaustive analysis of the strategy-making processes of European states with regard to China and US–China competition and makes a more comprehensive assessment desirable. The findings of this article have broader implications for policymaking. First, they demonstrate the necessity for Europe to determine its place in the increasing US–China competition. European coordination on the respective approaches vis-à-vis the US—especially in light of potential coercion to align—and China is of paramount importance to ensure that foreign policy strategies are mutually reinforcing and not undermining European objectives. Second, the article demonstrates that Europe currently responds to the ‘transatlantic China challenge’ through transatlantic hedging: while this strategy seems to be promising in the short term, it is questionable to what extent the strategy is sustainable and could help European states to navigate the parallel challenges of abandonment and entrapment. Unless Europe decides to fully align with the US—and it is questionable whether this decision would be in its interest—European states would be well advised to develop a sustainable long-term approach to China. A transatlantic dialogue on China, in which Europe and the US openly discuss synergies and divergences, could help prevent misunderstandings and decrease the risk of coercion or issue linkage due to a misreading of European approaches in Washington. Third, as the risks of (at least partial) abandonment and entrapment are systemic challenges due to the current composition of the transatlantic alliance, a logical step for European states to decrease their dependence on the US as the hegemon in the alliance would be to significantly strengthen European capabilities. Stronger military capabilities could help mitigate the ramifications of abandonment, and the aforementioned distinctly European strategy could allow Europe to avoid strategic entrapment in relation to China imposed by Washington. As Europe remains the junior partner in the transatlantic alliance, the parallel risks of abandonment and entrapment, as well as issue linkage, are highly likely to influence its approaches towards China in the long term, but there are certainly ways to render this ‘transatlantic China challenge’ less challenging. ORCID iDGesine Weber https://orcid.org/0009-0008-2643-0400Footnotes1. Conversation with French, German and British experts in Berlin, January 2025.2. Conversation with French, German and British experts in Berlin, January 2025.3. Conversation with French, German and British experts in Berlin, January 2025; conversation with European experts and officials in Paris, January 2025.4. Conversation with officials from Germany and France in Paris, November 2024; conversation with French, German and British experts in Berlin, January 2025.ReferencesBarkin N., Kratz A. (2025). Trump and the Europe–US–China Triangle. Rhodium Group, 16 January. https://rhg.com/research/trump-and-the-europe-us-china-triangle/. Accessed 18 January 2025.Demarais A. (2024). Divided we stand: The EU votes on Chinese electric vehicle tariffs. European Council on Foreign Relations, 9 October. https://ecfr.eu/article/divided-we-stand-the-eu-votes-on-chinese-electric-vehicle-tariffs/. Accessed 25 January 2025.Etienne P. (2024). 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France and New Caledonian stakeholders have agreed to start a one-year process that may reconfigure France’s relation to its former colony. However, materialising its goals will require a lot of political manoeuvring. One of Australia’s nearest neighbours, New Caledonia, may enter a new political configuration, short of independence. On 12 July, 2025, after ten days and nights of intense negotiations, representatives of the French government and six New Caledonian delegations signed the Bougival Accord, setting a one-year calendar to completely reconfigure New Caledonia’s politico-legal configuration, and also France’s constitutional system. Besides the media fanfare and President Emmanuel Macron hailing the agreement as “historic,” closer inspection shows a weakened pro-independence movement, and France leveraging a unique window of opportunity to consolidate its geostrategic presence in the Pacific; and with it, ensure a stable supply of nickel to France and Europe, while keeping Chinese influence at bay. This article provides some preliminary reflections on the Bougival Accord upon first reading. It does not intend to disparage the importance of the agreement and its commendable goal to advance self-determination in the region. Its main argument is that the Accord is a consensus made from concessions, but it seems to benefit France the most. Background The Accord follows a rushed independence referendum in December 2021, held during the COVID-19 pandemic, and a more turbulent electoral reform in 2024, which extended voting rights to 10-year residents and sparked fears of diluting Indigenous Kanaki influence. Civil unrest promptly resulted, and a brutal military response followed, with 14 dead, thousands of arrests, and independence activists sent to French prisons. The closure of the Kanaki-majority-controlled Koniambo mine, after Glencore’s withdrawal, caused one in six private sector workers to lose their job. Kanaki leaders had traditionally relied on “resource nationalism” to pursue economic autonomy, but economic hardship has diminished their negotiating power in this new agreement. Legal framework The Bougival Accord is not legally binding. It is a draft framework that will require further ratification through constitutional reform and a popular referendum scheduled for 2026. Notably, the Accord has no reference to terms such as “independence” or “referendum,” opting for the watered-down “emancipation” and “progressive decolonisation.” The preamble emphasises a “common destiny” between France and New Caledonia, portraying the latter as a benevolent partner and sole guarantor of democratic principles and the rule of law, in stark contrast to Chinese influence in the area. The Accord neatly aligns with France’s Indo-Pacific strategy, which outlines strategic pillars in defence and security, economic interests, rule of law, and ocean management. Power transfer amid political polarisation The Accord proposes a possible transfer of power from France to New Caledonia, but only in the areas of international relations, defence, currency, justice, and public order. Such transfer is not automatic, as it requires a qualified majority of 36 out of 54 seats (soon to be 56) in the New Caledonian Assembly. Under the current political fragmentation, 28 seats are held by the anti-independence parties and 25 by the pro-independence parties. Territorial configuration is the main hot topic in a deeply polarised political landscape, with both sides facing a tough time selling the Accord to their constituencies. Pro-independence supporters will likely be disappointed by the renouncement to any full-independence aspirations, whereas anti-independence groups may see a constitutional recognition of the new status quo as a defeat. Limited transfer of powers Even if the powers are transferred, France has ensured that it will keep significant control. New Caledonia’s ability to conduct international relations will now have to align with France’s foreign policy. On defence and security, New Caledonia has only obtained a mere consultative role. In regards to justice, Nouméa may develop rehabilitation and penitentiary policies, but the substantive criminal law will remain under French jurisdiction. The currency will remain the Franc Pacific, with a fixed exchange rate with the Euro, and New Caledonia will be given authority only to decide on its “symbolic designs.” This configuration is only novel to France’s paradigmatically centralised system, but is common in federal or autonomous states like Germany, Canada, or Spain. The new nickel strategy Nickel extraction may very well be the “de facto” central focus of the Accord. France explicitly links nickel to its, and Europe’s, industrial sovereignty. The Accord seems designed to limit Chinese influence, despite being New Caledonia’s primary nickel customer. After the closure of the Kanaki-controlled Koniambo mine, the Accord seems to resume ”business as usual.” With a weakened economic base, the pro-independence movement appears now more susceptible to concede to French demands. From all the potential infrastructure improvements that could have been proposed, only one is mentioned: improving energy production to ensure nickel production never stops. A new free-associated state? Many headlines focused on the novelty of creating “a state within a nation state.” Unprecedented as it may be under French law, it is not much different from territorial organisations elsewhere. British Overseas Territories keep a constitutional link to the United Kingdom and belong to their sovereignty territory. Cook Islands and Niue are self-governing states in free association with New Zealand, which cannot legislate for them, unlike France. Marshall Islands, Micronesia, and Palau are fully sovereign UN members that receive defence, funding, and social services by the US. In contrast, Puerto Rico is a US unincorporated territory that seems to share some similarities with New Caledonia’s proposed novel status (limited exercise of powers in exchange for federal funding and their citizens holding US passports). In conclusion, the Bougival Accord represents less a breakthrough in global governance than a shift in France’s approach to its former colonies. Most significantly, the Accord points demonstrates a moment of strategic weakness among the pro-independence forces, and a window of opportunity for France to consolidate its strategic presence in the Pacific. However, political gain should come second to protecting an exhausted local population, caught between quarrelling factions, and hoping that any Accord may lead to reconciliation. Their wellbeing is the true key to ensuring a peaceful and prosperous New Caledonia. Ignacio Portela Giráldez is a PhD Candidate at UNSW ADFA, researching the special territories of the European Union and British Overseas Territories. He holds a joint LLM in Comparative International and European Law by Maastricht University and Pompeu Fabra University and a Juris Doctor by the University of Puerto Rico. He is a Lecturer in Human Rights Protection and European Institutions for Criminal Justice at Pompey Fabra University, and is a former Institutional Relations Officer in the Cabinet of the Minister of Foreign Action and European Union of the Government of Catalonia. This article is published under a Creative Commons License and may be republished with attribution.

Abstract We examine the roles of Gold and Bitcoin as a hedge, a safe haven, and a diversifier against the coronavirus disease 2019 (COVID-19) pandemic and the Ukraine War. Using a rolling window estimation of the dynamic conditional correlation (DCC)-based regression, we present a novel approach to examine the time-varying safe haven, hedge, and diversifier properties of Gold and Bitcoin for equities portfolios. This article uses daily returns of Gold, Bitcoin, S&P500, CAC 40, and NSE 50 from January 3, 2018, to October 15, 2022. Our results show that Gold is a better safe haven than the two, while Bitcoin exhibits weak properties as safe haven. Bitcoin can, however, be used as a diversifier and hedge. This study offers policy suggestions to investors to diversify their holdings during uncertain times. Introduction Financial markets and the diversity of financial products have risen in both volume and value, creating financial risk and establishing the demand for a safe haven for investors. The global financial markets have faced several blows in recent years. From the Global Financial Crisis (GFC) to the outbreak of the pandemic and uncertainty regarding economic policy measures of governments and central banks, the financial markets including equity markets around the world were faced with severe meltdowns. This similar behavior was observed in other markets including equity and commodity markets, resulting in overall uncertainty. In this scenario, the investors normally flock toward the safe-haven assets to protect their investment. In normal situations, investors seek to diversify or hedge their assets to protect their portfolios. However, the financial markets are negatively impacted when there are global uncertainties. Diversification and hedging methods fail to safeguard investors’ portfolios during instability because almost all sectors and assets are negatively affected (Hasan et al., 2021). As a result, investors typically look for safe-haven investments to safeguard their portfolios under extreme conditions (Ceylan, 2022). Baur and Lucey (2010) provide the following definitions of hedge, diversifier, and safe haven: Hedge: An asset that, on average, has no correlation or a negative correlation with another asset or portfolio. On average, a strict hedge has a (strictly) negative correlation with another asset or portfolio.Diversifier: An asset that, on average, has a positive correlation (but not perfect correlation) with another asset or portfolio. Safe haven: This is the asset that in times of market stress or volatility becomes uncorrelated or negatively associated with other assets or a portfolio. As was previously indicated, the significant market turbulence caused by a sharp decline in consumer spending, coupled with insufficient hedging opportunities, was a common feature of all markets during these times (Yousaf et al., 2022). Nakamoto (2008) suggested a remedy by introducing Bitcoin, a “digital currency,” as an alternative to traditional fiduciary currencies (Paule-Vianez et al., 2020). Bitcoin often described as “Digital Gold” has shown greater resilience during periods of crises and has highlighted the potential safe haven and hedging property against uncertainties (Mokni, 2021). According to Dyhrberg (2016), the GFC has eased the emergence of Bitcoin thereby strengthening its popularity. Bouri et al. (2017) in their study indicate that Bitcoin has been viewed as a shelter from global uncertainties caused by conventional banking and economic systems. Recent research has found that Bitcoin is a weak safe haven, particularly in periods of market uncertainty like the coronavirus disease 2019 (COVID-19) crisis (Conlon & McGee, 2020; Nagy & Benedek, 2021; Shahzad et al., 2019; Syuhada et al., 2022). In contrast to these findings, a study by Yan et al. (2022) indicates that it can function as a strong safe haven in favorable economic times and with low-risk aversion. Ustaoglu (2022) also supports the strong safe-haven characteristic of Bitcoin against most emerging stock market indices during the COVID-19 period. Umar et al. (2023) assert that Bitcoin and Gold are not reliable safe-havens. Singh et al. (2024) in their study reveal that Bitcoin is an effective hedge for investments in Nifty-50, Sensex, GBP–INR, and JPY–INR, at the same time a good diversifier for Gold. The study suggests that investors can incorporate Bitcoin in their portfolios as a good hedge against market volatility in equities and commodities markets. During the COVID-19 epidemic, Barbu et al. (2022) investigated if Ethereum and Bitcoin could serve as a short-term safe haven or diversifier against stock indices and bonds. The outcomes are consistent with the research conducted by Snene Manzli et al. (2024). Both act as hybrid roles for stock market returns, diversifiers for sustainable stock market indices, and safe havens for bond markets. Notably, Bhuiyan et al. (2023) found that Bitcoin provides relatively better diversification opportunities than Gold during times of crisis. To reduce risks, Bitcoin has demonstrated a strong potential to operate as a buffer against global uncertainty and may be a useful hedging tool in addition to Gold and similar assets (Baur & Lucey, 2010; Bouri et al., 2017; Capie et al., 2005; Dyhrberg, 2015). According to Huang et al. (2021), its independence from monetary policies and minimal association with conventional financial assets allow it to have a safe-haven quality. Bitcoins have a substantial speed advantage over other assets since they are traded at high and constant frequencies with no days when trading is closed (Selmi et al., 2018). Additionally, it has been demonstrated that the average monthly volatility of Bitcoin is higher than that of Gold or a group of international currencies expressed in US dollars; nevertheless, the lowest monthly volatility of Bitcoin is lower than the maximum monthly volatility of Gold and other foreign currencies (Dwyer, 2015). Leverage effects are also evident in Bitcoin returns, which show lower volatilities in high return periods and higher volatilities in low return times (Bouri et al., 2017; Liu et al., 2017). According to recent research, Bitcoins can be used to hedge S&P 500 stocks, which increases the likelihood that institutional and retail investors will build secure portfolios (Okorie, 2020). Bitcoin demonstrates strong hedging capabilities and can complement Gold in minimizing specific market risks (Baur & Lucey, 2010). Its high-frequency and continuous trading further enrich the range of available hedging tools (Dyhrberg, 2016). Moreover, Bitcoin spot and futures markets exhibit similarities to traditional financial markets. In the post-COVID-19 period, Zhang et al. (2021) found that Bitcoin futures outperform Gold futures.Gold, silver, palladium, and platinum were among the most common precious metals utilized as safe-haven investments. Gold is one such asset that is used extensively (Salisu et al., 2021). Their study tested the safe-haven property of Gold against the downside risk of portfolios during the pandemic. Empirical results have also shown that Gold functions as a safe haven for only 15 trading days, meaning that holding Gold for longer than this period would result in losses to investors. This explains why investors buy Gold on days of negative returns and sell it when market prospects turn positive and volatility decreases (Baur & Lucey, 2010). In their study, Kumar et al. (2023) tried to analyse the trends in volume throughout futures contracts and investigate the connection between open interest, volume, and price for bullion and base metal futures in India. Liu et al. (2016) in their study found that there is no negative association between Gold and the US stock market during times of extremely low or high volatility. Because of this, it is not a strong safe haven for the US stock market (Hood & Malik, 2013). Post-COVID-19, studies have provided mixed evidence on the safe-haven properties of Gold (Bouri et al., 2020; Cheema et al., 2022; Ji et al., 2020). According to Kumar and Padakandla (2022), Gold continuously demonstrates safe-haven qualities for all markets, except the NSE, both in the short and long term. During the COVID-19 episode, Gold’s effectiveness as a hedge and safe-haven instrument has been impacted (Akhtaruzzaman et al., 2021). Al-Nassar (2024) conducted a study on the hedge effectiveness of Gold and found that it is a strong hedge in the long run. Bhattacharjee et al. (2023) in their paper examined the symmetrical and asymmetrical linkage between Gold price levels and the Indian stock market returns by employing linear autoregressive distributed lag and nonlinear autoregressive distributed lag models. The results exhibit that the Indian stock market returns and Gold prices are cointegrated. According to the most recent study by Kaczmarek et al. (2022), Gold has no potential as a safe haven, despite some studies on the COVID-19 pandemic showing contradictory results. The co-movements of Bitcoin and the Chinese stock market have also normalized as a result of this epidemic (Belhassine & Karamti, 2021). Widjaja and Havidz (2023) verified that Gold was a safe haven asset during the COVID-19 pandemic, confirming the Gold’s safe-haven characteristic. As previously pointed out, investors value safe-haven investments in times of risk. Investors panic at these times when asset prices fall and move from less liquid (risky) securities to more liquid (safe) ones, such as cash, Gold, and government bonds. An asset must be bought and sold rapidly, at a known price, and for a reasonably modest cost to be considered truly safe (Smales, 2019). Therefore, we need to properly re-examine the safe-haven qualities of Gold and Bitcoin due to the mixed evidences regarding their safe-haven qualities and the impact of COVID-19 and the war in Ukraine on financial markets. This work contributes to and deviates from the body of existing literature in the following ways. We propose a novel approach in this work to evaluate an asset’s time-varying safe haven, hedge, and diversifier characteristics. This research examines the safe haven, hedging, and diversifying qualities of Gold and Bitcoin against the equity indices; S&P 500, CAC 40, and NSE 50. Through the use of rolling window estimation, we extend the methodology of Ratner and Chiu (2013) by estimating the aforementioned properties of the assets. Comparing rolling window estimation to other conventional techniques, the former will provide a more accurate representation of an asset’s time-varying feature. This study explores the conventional asset Gold’s time-varying safe haven, hedging, and diversifying qualities during crises like the COVID-19 pandemic and the conflict in Ukraine. We use Bitcoin, an unconventional safe-haven asset, for comparison. Data and Methodology We use the daily returns of three major equity indices; S&P500, CAC 40, and NSE 50 from January 3, 2018, to October 15, 2022. The equity indices were selected to represent three large and diverse markets namely the United States, France, and India in terms of geography and economic development. We assess safe-haven assets using the daily returns of Gold and Bitcoin over the same time. Equity data was collected from Yahoo Finance, Bitcoin data from coinmarketcap.com, and Gold data from the World Gold Council website. Engle (2002) developed the DCC (Dynamic Conditional Correlation)-GARCH model, which is frequently used to assess contagion amid pandemic uncertainty or crises. Time-varying variations in the conditional correlation of asset pairings can be captured using the DCC-GARCH model. Through employing this model, we can analyse the dynamic behavior of volatility spillovers. Engle’s (2002) DCC-GARCH model contains two phases; 1. Univariate GARCH model estimation2. Estimation of time-varying conditional correlation. For its explanation, mathematical characteristics, and theoretical development, see here [insert the next link in “the word here” https://journals.sagepub.com/doi/10.1177/09711023251322578] Results and Discussion The outcomes of the parameters under the DCC-GARCH model for each of the asset pairs selected for the investigation are shown in Table 1.   First, we look at the dynamical conditional correlation coefficient, ρ.The rho value is negative and insignificant for NSE 50/Gold, NSE 50 /BTC, S&P500/Gold, and S&P500/BTC indicating a negative and insignificant correlation between these asset pairs, showing Gold and Bitcoin as potential hedges and safe havens. The fact that ρ is negative and significant for CAC 40/Gold suggests that Gold can be a safe haven against CAC 40 swings. The asset pair CAC/BTC, on the other hand, has possible diversifier behavior with ρ being positive but statistically insignificant. Next, we examine the behavior of the DCC-GARCH parameters; α and β. We find that αDCC is statistically insignificant for all the asset pairs, while βDCC is statistically significant for all asset pairs. βDCC quantifies the persistence feature of the correlation and the extent of the impact of volatility spillover in a particular market’s volatility dynamics. A higher βDCC value implies that a major part of the volatility dynamics can be explained by the respective market’s own past volatility. For instance, the NSE 50/Gold’s βDCC value of 0.971 shows that there is a high degree of volatility spillover between these two assets, with about 97% of market volatility being explained by the assets’ own historical values and the remainder coming from spillover. Thus, we see that the volatility spillover is highly persistent (~0.8) for all the asset pairs except NSE 50/BTC. The results above show that the nature of the dynamic correlation between the stock markets, Bitcoin and Gold is largely negative, pointing toward the possibility of Gold and Bitcoin being hedge/safe haven. However, a detailed analysis is needed to confirm the same by employing rolling window analysis, and we present the results in the forthcoming section. We present the rolling window results for S&P500 first. We present the regression results for Gold in Figure 1 and Bitcoin in Figure 2   Figure 1. Rolling Window Regression Results for S&P500 and Gold.Note: Areas shaded under factor 1 represent significant regression coefficients. In Figure 1, we examine the behavior of β0 (intercept term), β1, β2, and β3 (partial correlation coefficients). The intercept term β0 will give an idea about whether the asset is behaving as a diversifier or hedge. Here, the intercept term shows significance most of the time. However, during 2018, the intercept was negative and significant, showing that it could serve as a hedge during geopolitical tensions and volatilities in the global stock market. However, during the early stages of COVID-19, we show that the intercept is negative and showing statistical significance, suggesting that Gold could serve as a hedge during the initial shocks of the pandemic. These findings are contrary to the results in the study by Tarchella et al. (2024) where they found hold as a good diversifier. Later, we find the intercept to be positive and significant, indicating that Gold could act as a potential diversifier. But during the Russia-Ukraine War, Gold exhibited hedge ability again. Looking into the behavior of β1, which is the partial correlation coefficient for the tenth percentile of return distribution shows negative and insignificant during 2018. Later, it was again negative and significant during the initial phases of COVID-19, and then negative in the aftermath, indicating that Gold could act as a weak safe haven during the COVID-19 pandemic. Gold could serve as a strong safe haven for the SP500 against volatility in the markets brought on by the war in Ukraine, as we see the coefficient to be negative and large during this time. From β2 and β3, the partial correlation coefficients of the fifth and first percentile, respectively, show that Gold possesses weak safe haven properties during COVID-19 and strong safe haven behavior during the Ukraine crisis. Next, we examine the characteristics of Bitcoin as a hedge/diversifier/safe haven against the S&P500 returns. We present the results in Figure 2.   Figure 2. Rolling Window Regression Results for S&P500 and Bitcoin.Note: Areas shaded under factor 1 represent significant regression coefficients. Like in the previous case, we begin by analysing the behavior of the intercept coefficient, which is β0. As mentioned earlier the intercept term will give a clear picture of the asset’s hedging and diversifier property. In the period 2018–2019, the intercept term is positive but insignificant. This could be due to the large volatility in Bitcoin price movements during the period. It continues to be minimal (but positive) and insignificant during 2019–2020, indicating toward weak diversification possibility. Post-COVID-19 period, the coefficient shows the significance and positive value, displaying the diversification potential. We see that the coefficient remains positive throughout the analysis, confirming Bitcoin’s potential as a diversifier. Looking into the behavior of β1 (the partial correlation coefficient at tenth percentile), it is positive but insignificant during 2018. The coefficient is having negative sign and showing statistical significance in 2019, suggesting that Bitcoin could be a good safe haven in that year. This year was characterized by a long list of corporate scandals, uncertainties around Brexit, and tensions in global trade. We can observe that throughout the COVID-19 period, the coefficient is showing negative sign and negligible during the March 2020 market meltdown, suggesting inadequate safe-haven qualities. However, Bitcoin will regain its safe-haven property in the coming periods, as the coefficient is negative and significant in the coming months. The coefficient is negative and shows statistical significance during the Ukrainian crisis, suggesting strong safe-haven property. Only during the Ukrainian crisis could Bitcoin serve as a safe haven, according to the behavior of β2, which displays the partial correlation coefficient at the fifth percentile. Bitcoin was a weak safe haven during COVID-19 and the Ukrainian crisis, according to β3, the partial correlation coefficient for the first percentile (coefficient negative and insignificant). According to the overall findings, Gold is a stronger safe haven against the S&P 500’s swings. This result is consistent with the previous studies of Triki and Maatoug (2021), Shakil et al. (2018), Będowska-Sójka and Kliber (2021), Drake (2022), and Ghazali et al. (2020), etc. The same analysis was conducted for the CAC 40 and the NSE 50; the full analysis can be found here [insert the next link in “the word here” https://journals.sagepub.com/doi/10.1177/09711023251322578]. However, it is important to highlight the respective results: In general, we may say that Gold has weak safe-haven properties considering CAC40. We can conclude that Bitcoin’s safe-haven qualities for CAC40 are weak. We can say that Gold showed weak safe-haven characteristics during the Ukraine crisis and good safe-haven characteristics for the NSE50 during COVID-19. We may say that Bitcoin exhibits weak safe haven, but strong hedging abilities to NSE50. Concluding Remarks In this study, we suggested a new method to evaluate an asset’s time-varying hedge, diversifier, and safe-haven characteristics. We propose a rolling window estimation of the DCC-based regression of Ratner and Chiu (2013). Based on this, we estimate the conventional asset’s time-varying safe haven, hedging, and diversifying properties during crises like the COVID-19 pandemic and the conflict in Ukraine. For comparison purposes, we include Bitcoin, a nonconventional safe-haven asset. We evaluate Gold and Bitcoin’s safe haven, hedging, and diversifier properties to the S&P 500, CAC 40, and NSE 50 variations. We use a rolling window of length 60 to estimate the regression. From the results, we find that Gold can be considered as a better safe haven against the fluctuations of the S&P 500. In the case of CAC 40, Gold and Bitcoin have weak safe-haven properties. While Bitcoin demonstrated strong safe-haven characteristics during the Ukraine crisis, Gold exhibited strong safe-haven characteristics during COVID-19 for the NSE 50. Overall, the findings indicate that Gold is the better safe haven. This outcome is consistent with earlier research (Będowska-Sójka & Kliber, 2021; Drake, 2022; Ghazali et al., 2020; Shakil et al., 2018; Triki & Maatoug, 2021). When it comes to Bitcoin, its safe-haven feature is weak. Bitcoin, however, works well as a diversifier and hedge. Therefore, from a policy perspective, investing in safe-haven instruments is crucial to lower the risks associated with asset ownership. Policymakers aiming to enhance the stability of financial portfolios might encourage institutional investors and other market players to incorporate Gold into their asset allocations. Gold’s strong safe-haven qualities, proven across various market conditions, make it a reliable choice. Gold’s performance during crises like COVID-19 highlights its potential to mitigate systemic risks effectively. Further, Bitcoin could also play a complementary role as a hedge and diversifier, especially during periods of significant volatility such as the Ukraine crisis. While Bitcoin’s safe-haven characteristics are relatively weaker, its inclusion in a diversified portfolio offers notable value and hence it should not be overlooked. Further, policymakers may consider how crucial it is to monitor dynamic correlations and periodically rebalance portfolios to account for shifts in the safe haven and hedging characteristics of certain assets. Such measures could help reduce the risks of over-reliance on a single asset type and create more resilient portfolios that can better withstand global economic shocks. For future research, studies can be conducted on the estimation of the rolling window with different widths. This is important to understand how the safe-haven property changes across different holding periods. Further, more equity markets would be included to account for the differences in market capitalization and index constituents. This study can be extended by testing these properties for multi-asset portfolios as well. We intend to take up this study in these directions in the future. Data Availability StatementNot applicable.Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.FundingThe authors received no financial support for the research, authorship, and/or publication of this article.ReferencesAkhtaruzzaman M., Boubaker S., Lucey B. M., & Sensoy A. (2021). Is gold a hedge or a safe-haven asset in the COVID-19 crisis? Economic Modelling, 102, 105588. Crossref. Web of Science.Al-Nassar N. S. (2024). Can gold hedge against inflation in the UAE? A nonlinear ARDL analysis in the presence of structural breaks. PSU Research Review, 8(1), 151–166. Crossref.Barbu T. C., Boitan I. A., & Cepoi C. O. (2022). Are cryptocurrencies safe havens during the COVID-19 pandemic? A threshold regression perspective with pandemic-related benchmarks. Economics and Business Review, 8(2), 29–49. 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