Subscribe to our weekly newsletters for free

Subscribe to an email

If you want to subscribe to World & New World Newsletter, please enter
your e-mail

Defense & Security
Israel and Iran flags on Middle east map. High quality photo

Iran-Israel ‘threshold war’ has rewritten nuclear escalation rules

by Farah N. Jan

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском Israel’s conflict with Iran represents far more than another Middle Eastern crisis – it marks the emergence of a dangerous new chapter in nuclear rivalries that has the potential to reshape global proliferation risks for decades to come. What began with Israeli strikes on Iranian nuclear facilities and other targets on June 13, 2025 has now spiraled into the world’s first full-scale example of what I as an expert in nuclear security call a “threshold war” – a new and terrifying form of conflict where a nuclear weapons power seeks to use force to prevent an enemy on the verge of nuclearization from making that jump. As missiles continue to rain down on both Tehran and Tel Aviv – with hundreds dead in Iran and at least 24 killed in Israel – the international community is witnessing the collapse of traditional deterrence frameworks in real time. Unlike traditional nuclear rivalries where both sides possess declared arsenals – like India and Pakistan, who despite their tensions operate under mutual deterrence – this new threshold dynamic creates an inherently unstable escalation spiral. Iran increasingly believes it cannot deter Israeli aggression without nuclear weapons, yet every step toward acquiring them invites more aggressive Israeli strikes. Israel, for its part, cannot permanently eliminate Iran’s nuclear knowledge through military means – it can only delay it through means that would seemingly guarantee future Iranian determination to acquire the ultimate deterrent. Under this dynamic, neither side can step back without accepting an intolerable outcome: for Israel, an Iran more determined than even in becoming a nuclear weapons nation capable of deterring Israeli action and ending its regional military dominance; for Iran, the risk of regime change through devastating Israeli strikes. The consequences of this deadly logic extend far beyond the Middle East. The preventive strike precedent The stakes could not be higher, as Iranian officials have called the attack “a declaration of war” and vowed that destroyed nuclear facilities “would be rebuilt.” Israel, meanwhile has warned its campaign will continue “for as many days as it takes.” Most ominously, the scheduled nuclear talks between the U.S. and Iran were called off, with Tehran dismissing any such dialogue as “meaningless.” This may suggest diplomacy’s window – which opened for just a few months under Trump’s second administration, after being closed during his first – was deliberately slammed shut. More broadly, the Israeli strikes mark a dangerous evolution in international norms around preventive warfare. While Israeli officials called this a “preemptive strike,” the legal and strategic reality is different. Preemptive strikes respond to imminent threats – like Israel’s 1967 Six-Day War against Arab armies preparing to attack. Preventive strikes, by contrast, target distant future threats when conditions seem favorable – like Japan’s attack on Pearl Harbor in 1941. Israel justified its action by claiming Iran could rapidly assemble up to 15 nuclear bombs. Yet, as the International Atomic Energy Agency director, Rafael Grossi, warned beforehand, an Israeli strike could solidify rather than deter Iran’s nuclear ambitions, potentially prompting withdrawal from the Nuclear Non-Proliferation Treaty. True to that warning, on June 16, Iran announced it was preparing a parliamentary bill that would see the country leave the 1968 treaty. Israel’s calculations in opting to strike build on the same erosion of international legal frameworks that has legitimized preemptive warfare since the United States’ military action in Afghanistan and Iraq after the Sept. 11, 2001 attack. America’s “war on terror” fundamentally challenged sovereignty norms through practices like drone strikes and preemptive attacks. More recently, operations in Gaza and elsewhere have demonstrated that violations of international humanitarian law carry limited consequences in practice. For Israel, this permissive environment has seemingly created both opportunity and justification regarding striking Iran – something that Prime Minister Benjamin Netanyahu has been pursuing for decades. Already, Russia’s attacks on Ukraine’s Zaporizhzhia nuclear plant demonstrated nuclear facilities’ vulnerability in modern warfare. I believe Israel’s actions further risk normalizing attacks on nuclear infrastructure, potentially legitimizing similar preventive actions by India, China or the U.S. against emerging nuclear programs elsewhere. From strikes to regional conflagration Israel’s initial strike quickly triggered inevitable escalation. Iran’s retaliation came in waves: first hundreds of drones and missiles on June 13, then sustained barrages throughout the following days. By the morning of June 15, both countries were trading strikes on energy infrastructure, military bases and civilian areas, with no immediate end in sight. The Houthis in Yemen have since joined the fight, by launching ballistic missiles at Tel Aviv. Notably absent are Hezbollah, Hamas and Iran’s Iraqi militias – all significantly damaged by recent action by Israel. This degradation of Iran’s “axis of resistance” – its traditional forward deterrent – fundamentally alters Tehran’s strategic calculations. Without strong proxies to threaten retaliation, Iran is more exposed to Israeli strikes, making nuclear weapons seem like the only reliable deterrent against future attacks. The escalation pattern illustrates what can happen when when a government casts aggression as prevention. Having initiated the recent escalation of hostilities, Israel now faces the consequences. Iranian President Masoud Pezeshkian’s vow that destroyed facilities “would be rebuilt” underscores that Israeli action designed to prevent nuclearization may instead result in Iran pursuing it with renewed determination. The commitment trap This creates what strategists call the “commitment trap” – a dynamic where both sides face escalating costs but cannot back down. Israel faces its own strategic dilemma. The strikes may ultimately accelerate rather than prevent Iranian nuclearization, yet backing down would mean accepting a nuclear Iran. Netanyahu’s promise that current strikes are “nothing compared to what they will feel in coming days” shows how quickly strikes sold as preventative escalate toward total war. Unlike established nuclear powers that can negotiate from positions of strength, threshold states, such as Iran, face a stark choice: remain vulnerable to preventive strikes and regime change or race toward the protection that nuclear deterrence provides. North Korea offers the clearest example of this dynamic. Despite decades of sanctions and military threats, Pyongyang’s nuclear program has made it essentially immune to preventive strikes. Iranian leaders understand this lesson well – the question is whether they can reach the same protected status before suffering decisive preventive action. Traditional nuclear deterrence theory assumes rational actors operating under mutual vulnerability. But threshold wars break these assumptions in fundamental ways. Iran cannot fully deter Israeli action because it lacks confirmed weapons, while Israel cannot rely on deterrence to prevent Iranian weaponization because Iran’s nuclear program continues advancing. This creates “use it or lose it” dynamics: Israel faces shrinking windows to act preventively as Iran approaches weaponization; Iran faces incentives to accelerate its program before suffering additional strikes. The absence of effective external mediation compounds these risks. U.S. President Donald Trump’s response to the strikes reveals this dynamic starkly. Initially opposing military action and preferring diplomacy to “bombing the hell out of” Iran, Trump pivoted dramatically after the strikes began, and warned that “there’s more to come. A lot more.” His post on Truth Social – “Two months ago I gave Iran a 60-day ultimatum to ‘make a deal.’ They should have done it!” – demonstrates how quickly diplomatic efforts can collapse once threshold wars begin. Global implication The international response reveals how thoroughly Israel’s Operation Rising Lion has normalized aggression against nuclear facilities. While European leaders called for “maximum restraint,” none condemned Israel’s initial attacks. Russia and China condemned the attacks but took no concrete action. The U.N. Security Council produced only statements of “concern” about “escalation.” This normalization sets what I believe to be a catastrophic precedent. The threshold war model threatens to unravel decades of nuclear governance based on deterrence rather than preemption. Indeed, the Iran-Israel threshold war sets dangerous precedents for other regional nuclear competitions. Successful preventive strikes could incentivize similar actions elsewhere, eroding diplomatic nonproliferation efforts. Conversely, rapid nuclearization by Iran could encourage other threshold states, like Saudi Arabia, to pursue nuclear capabilities swiftly and secretly. When preventive strikes become the enforcement mechanism for nonproliferation norms, the entire architecture of nuclear governance begins to crumble. Without these frameworks, the world faces an unstable future defined by cycles of preventive strikes and accelerated nuclear proliferation – far more dangerous than the Cold War-era standoffs that shaped nuclear governance.

Defense & Security
trade war. Flag of the People's Republic of China. Flag of the United States. Taiwan flag, 3d illustration

The ‘Clash of Nationalisms’ in the Contentious USA–Taiwan–China Relations

by Orson Tan , Alexander C. Tan

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском Abstract Why is it that cross-strait tension has been at its highest since the missile crisis of 1996? Why is the USA–Taiwan–China relations so contentious since 2016? This article argues that one oft-neglected factor—nationalism and identity politics—needs to be considered as a contributing factor to the heightened tension in this triangular relationship. In all three states, audience costs have significantly increased as domestic leaders and elites appeal to populist and nationalistic positions and rhetoric. Though studies of foreign policy often claim that ‘politics stop at the water’s edge,’ populist and nationalist rhetoric in the domestic politics almost always spill over to the international arena. The convergence of Trump’s America First and the US’ obsession with its global primacy underpins and drives America’s approach to its strategic competition with China. China’s continual reference to the hundred years of humiliation in the nineteenth century and early twentieth century and Xi Jinping’s ‘China Dream’ are ethnonationalist appeals that drives China’s fight for its ‘rightful place’ in the global pecking order. Taiwan’s deepening national identity and sociopolitical de-Sinicisation while contributing the development of a separate nation-state is a direct clash to the People’s Republic of China (PRC’s) claim of Taiwan as part of its one-China principle. This article will trace and examine the role of domestic nationalism and how it has contributed to make the Taiwan Straits a ‘hotspot’ in global geopolitics and geoeconomics. Introduction The introduction of the phrase ‘Taiwan Contingency’ to the global lexicon in 2020 served to highlight how the temperature of cross-strait relations between China and Taiwan had become a key barometer that the global community was paying attention to (Taylor, 2020). It is also not a coincidence that the increasing attention paid to the Taiwan Strait comes at a time when the USA–China relationship has devolved into great power strategic competition; the Pentagon had long used the term ‘Taiwan Contingency’ in its annual assessment reports on the US military’s ability to implement the Taiwan Relations Act, going as far back as the report from the year 2000, but it was only when USA–China relations worsened and cross-strait tensions created a worry about a flashpoint that the term became widely used (Department of Defense, 2000; Wuthnow, 2020). Much has been said about the increasing tension in cross-strait relations being a result of the overarching competition between the USA and China to define their positions vis-a-viz each other in the global hierarchy. These increasing tensions have often been attributed to the inherent rivalry between an ascending power and a declining one, most notably by Graham Allison in his book Destined for War (Hanania, 2021). The idea of the Thucydides Trap as floated by Allison has become the dominant narrative in the discourse surrounding the USA–China competition and has also contributed to an arguably narrow analysis of the strategic competition. Influenced by the analysis of the Thucydides Trap, China’s actions have been cast separately as being driven by security concerns and imperial aggression, feeding into the narrative of a power struggle in the international arena between the reigning superpower and a surging new power with desires to fulfil its civilisational creed (Mazza, 2024; Peters et al., 2022; Sobolik, 2024). This view seeks to portray China as a disrupting force that seeks to upend the status quo in the international system and thereby overturn the current rules-based international order, while casting the USA as a defender standing up against Chinese aggression, and has led to the USA–China strategic competition also being referred to a ‘new Cold War’ (Brands & Gaddis, 2021; Mazza, 2024). The rising tension in the Taiwan Strait has thus been seen as serving as a frontline to this ‘new Cold War’, and that the three-party relationship between the USA, China and Taiwan serves as some litmus test of American ability to contain a rising China (Lee, 2024). In fact, China hawks in the US and Taiwanese officials have often made use of this ‘new Cold War’ setting to frame the USA–China strategic competition as a competition between autocracies and democracies, and that Taiwan’s democracy makes it worth protecting (Hung, 2022; Lee, 2024). The Taiwanese government has consistently focused on a need to build an alliance of democracies that will support the island against Chinese aggression, highlighting shared values and like-minded partners in their discourse (Ripley, 2024). Yet, a broader analysis shows how framing the rising tension in the Taiwan Strait was a by-product of the greater geopolitical struggle between the USA and China in this ‘new Cold War’ ignores other possible factors. Most notably, the impact of nationalism and identity politics on the domestic sphere needs to be considered as a contributing factor to the heightened tension in this triangular relationship. While there has been increasing attention on nationalism as a characteristic of the international system since the time that scholars like Holsti (1980) brought up the need to emphasise the ‘prominence of nationalist behaviour’ in international relations (IRs) theory, the contemporary analysis of the Taiwan Strait issue shows that most still ignore the impact of domestic pressures on foreign policy choice by the three parties in this relationship; audience costs have significantly increase as domestic leaders and elites appeal to populist and nationalistic positions and rhetoric, and these populist and nationalist rhetoric in the domestic politics almost always spill over to the international arena (p. 25). In the United States, we have the convergence of Trump’s America First ideology and the US’ obsession with its global primacy that underpins and drives America’s approach to its strategic competition with China. While in China, the Chinese Communist Party’s (CCP) continual reference to the hundred years of humiliation in the nineteenth century and early twentieth century and Xi Jinping’s ‘China Dream’ are ethnonationalist appeals that are used to reinforce the Party’s right to guide China to fight for its ‘rightful place’ in the global pecking order. On the island, Taiwan’s deepening national identity and sociopolitical de-Sinicisation while contributing the development of a separate nation-state create a direct clash to the People’s Republic of China (PRC’s) claim of Taiwan as part of its one-China principle. This article thus seeks to trace and examine the role of domestic nationalism and how it has contributed to make the Taiwan Strait a ‘hotspot’ in global geopolitics and geoeconomics. This is done by first analysing the literature on nationalism and its role in IRs, following which, the sections examine the unique nationalisms of the United States, China and Taiwan and their role in increasing audience costs for the political elite, which will allow us to analyse how this clash of nationalism contributes to the Taiwan Strait becoming the global ‘hotspot’ that it is. Understanding Nationalism in International Relations As previously mentioned, the literature on IRs theory mainly focuses ‘on models of international interaction based on rational action and material structural factors, and exogenising the formation of preferences and the actors’ identities’ (D’Anieri, 1997, p. 2). Even theorists who have engaged with nationalism in international relations have admitted that ‘the relationship between the two has never been an especially easy one’ (Cox, 2019, p. 249). Yet nationalism is arguably central to the practice of IRs, given how nationalism is a key factor that makes it possible to conceive of states as coherent agents, as it creates the distinctiveness that allows a nation-state to define itself in its interactions with another (Kowert, 2012; Waltz, 1959). It is almost impossible to ignore the role of nationalism given the presumed equivalence of ‘nation’ and ‘state’ in IRs theories, and how nationalism is embedded in the conceptualisation of sovereignty, which serves as a fundamental factor in the interactions between states (Heiskanen, 2019, 2021). This is especially so given how the era of globalisation has come to an end, giving rise to a period of IRs that is characterised by securitisation and the preponderance of terms like ‘national security’ and ‘national interest’ (Heiskanen, 2019; Posen, 2022). In this contemporary age, there is a heightened awareness of the need to express and protect a state’s sovereignty in its international interactions, which therefore paves the way for nationalism to be the ‘centripetal force’ in driving interactions between nation-states (Kovács, 2022; Waltz, 1959, pp. 177–178). Nationalism can play such a role in defining interactions between nation-states because nationalism at its core is the conceptualisation of the identity of the polity. Modern nationalism in that sense is the expression of the principle that ‘nation = state = people’, with the purpose of binding the people to the state under one ‘imagined community’ to justify the existence of the nation-state as a construct (Anderson, 1983; Hobsbawm, 1990, p. 19). The nationalism that defines the nation-state is neither natural nor inevitable, but rather a by-product of a nation-building effort to craft an identity that will allow the state to distinguish and therefore differentiate itself in a world of nation-states (Connor, 1990; Gellner, 1983; Smith, 1986). This creates the peculiarity of nationalism in which they are essentially all the same, yet at the same time, individually unique by necessity. It is thus the interaction between the individual uniqueness while having the same broad goals that lead to nationalism influencing the interactions of nation-states in the international arena; arguably, it is not just the strength of nationalism that is important but also the content of the national identity that helps dictate the interaction between the states (D’Anieri, 1997). The creation and the make-up of nationalisms and national identities are thus of interests for this article’s analysis of the triangular relationship between United States, China and Taiwan. The literature on nationalism and national identity gives us a breakdown on the creation of nationalism. As a relatively modern phenomenon, the rise of nationalisms around the world is a direct result of the socioeconomic upheaval that marked the progress of modernity (Anderson, 1983; Gellner, 1983). The advent of industrialisation saw the collapse of the previous social structure that separated the agrarian, merchant classes and the nobility, and necessitated the development of a new identity that would bind diverse groups of people together under the banner of a nation-state. In that regard, the creation of nationalism was necessarily top-down, often driven by the needs of the new political elite who now exercised power in these emerging modern nation-states and formed through nationwide tools such as a national language and the national education system (Anderson, 1983; Gellner, 1983). The content of the national identity though could not simply be created out of thin air where the general form of nationalisms is the same and built on a structure of common identity and a sense of belonging to a community, the content of nationalisms needed to be specific to the groups of people living in the nation-state to produce the necessary uniqueness that would engender the desired outcome. As such, nationalisms and national identities were built on the pre-existing myths and histories of the people that inhabited the land or were present at the founding of the nation-state (Billig, 1995; Calhoun, 1997; Smith, 1986). This results in various contents of the nationalism that are part ethnic but also part mythological. The next section will examine the contents of the national identities of the United States, China and Taiwan in relation to this. American Exceptionalism: America the Great Like all nationalisms, American nationalism aims to ‘legitimise, mobilise and integrate the nation, thereby promoting the unity of the national people, and demanding a sovereign state for this nation’ (Trautsch, 2016, p. 291). Yet unlike European nationalism which had existing histories to build upon, American nationalism was ‘a model of nationhood that did not rest on historic claims to antiquity nor on any sense of distinctive peoplehood’, its foundations being very much rooted on mythologising the pilgrims’ journey across the Atlantic on the Mayflower and the nation’s beginnings as a settler nation (Doyle, 2009, p. 79). The pilgrims’ journey on the Mayflower marked the separation between the ‘Old World’ and the ‘New World’, providing dividing line that forms the basis for the conceptualisation of America as unique. While American nationalism does identify its roots with the colonial migration from Europe, the beginnings of this nationalism are tied specifically to the American Revolution and the Declaration of Independence (Doyle, 2009). The War of Independence marked a coalescing of consciousness in the 13 colonies that birthed a new nation, and gave even more credence to the distinction between Europe and the ‘Old World’, and the new American nation in the ‘New World’ (Commager, 1959; Doyle, 2009). This distinction was helped by the colonies’ history as an asylum for religious dissenters, impoverished servants and assorted refugees from Europe, allowing the colonies to divest itself of its British heritage (Doyle, 2009). Yet, certain aspects of British culture did influence the founding fathers of America in the conception of the American nation. While rebelling against their colonial masters, the founding fathers framed their independence as based on the British belief in the institutions of law, liberty and representative government mixed with a healthy dose of religiosity, which, given the lack of a feudal tradition and existing aristocracy, allowed for the creation of a national consciousness that celebrated equality without the necessary social revolution that marked the ‘Old World’ (Lieven, 2012). This allowed for the image of America as a newfound promise land, further playing into the distinction between the old and new, and as scholars from Tocqueville on have noted, birthed the idea of the exceptionalism of the American nation, the ‘shining city on the hill’ (Lieven, 2012). The subsequent expansion of the USA westward that saw the eventual formation of the geographical borders of modern America helped to further this sense of exceptionalism. As the expansion evolved from purchasing land to conflict with both the Native Americans and the Spanish colonial forces, American exceptionalism took on a sense of preordination (Doyle, 2009; Trautsch, 2016). Between the Revolution and the Civil War, American nationalists who recognised the need for strengthening the national consciousness began the enterprise by focusing on the fundamental idea that ‘Americans had a historic mission and that their bond of nationhood lay in their common destiny’; this required the positioning of America’s future place in the history of the world as one that was naturally glorious (Doyle, 2009, p. 86; Trautsch, 2016). To that end, the nationalists pushed the narrative of America’s ‘manifest destiny’, an unstoppable rise for the ‘freest, the happiest, and soon to be the greatest and most powerful country in the world’ (Doyle, 2009, p. 88). The successful expansion and victories in conflict that eventuated in the American nation covering the breadth of continental North America firmly entrenched this sense of preordained greatness for the nation. American nationalism had come to encompass both the civic values of liberty and respect for institutions, and the dreams of imperial grandeur that marked them for greatness; America was free and therefore exceptional, just as America was victorious and therefore exceptional. American exceptionalism, therefore, made the nation’s ascension to the top of the global hierarchy post-1945 easy. To the American nation, having believed in their destined greatness, a seat at the table presiding over global affairs was only to be expected. American nationalism had led the nation to believe in its destiny, and it saw itself as having been chosen, or even, anointed to lead (Lieven, 2012). Such exceptionalism naturally influences modern American foreign policy, as Kristol (1983) points out: Patriotism springs from love of the nation’s past; nationalism arises out of hope for the nation’s future, distinctive greatness…The goals of American foreign policy must go well beyond a narrow, too literal definition of ‘national security.’ It is the national interest of a world power, as this is defined by a sense of national destiny. (p. xiii) American nationalism shapes the way the USA views its interactions with the world, starting with its presumption of its deserved position at the top of the global hierarchy. The mythologising of its ‘historic mission’ and ‘manifest destiny’ helped to create the paradigm that the United States is the natural leader of the world, and its national interests include the protection of its position as the leader of the world. This creates a knock-on effect in its interactions with other states; if the United States is the natural leader, then others must listen and be led, and as the leader, challenges to its primacy cannot be tolerated. However, such conceptualisation brings it into a clash with the rising nationalism of China. Chinese Ethnonationalism: The China Dream Unlike American nationalism, modern Chinese nationalism is a relatively new phenomenon. In fact, the conceptualisation of a Chinese nation did not come about until the nineteenth century, as the Chinese tried to ‘create a modern identity to cope with conditions created by China’s confrontation with the Western world’, forcing the Chinese ‘to deal with foreign concepts, including that of nation, state, sovereignty, citizenship and race’ (Wu, 1991, p. 159). Furthermore, where American nationalism was centred upon its existence as a settler nation, Chinese nationalism could rest on both historic claims to antiquity and a sense of distinctive peoplehood, as Smith (1986) would have identified it, the roots of Chinese nationalism were definitely ethnosymbolic. The 1911 Revolution that saw the collapse of the Qing Dynasty and Imperial China marked the beginnings of modern Chinese nationalism (Townsend, 1992). Where previously the conceptualisation of Chinese identity was grounded in a rich cultural heritage of stories about the ‘abstract idea of the ‘Great Tradition’ of Chinese civilisation’, the encroachment of Western colonial forces in China led to rising discontentment amongst the Chinese public and the rise of intellectual writings about a modern form of Chinese identity which combined Chinese tradition and Western nationalism (Townsend, 1992; Wang, 1988, p. 2; Zheng, 2012). Dr Sun Yat-Sen, who is acknowledged as the father of the modern nation, pushed for the creation of a consciousness of nationhood in his Three Principles of the People, advocating for the creation of modern Chinese nationalism that was centred upon the Chinese people as a unified group, which he categorised as the Chinese ethnic community, ÖлªÃñ×å zhonghuaminzu (Fitzgerald, 2016; Tan & Chen, 2013; Wang, 1988; Wells, 2001). The end of the 1911 Revolution saw the establishment of the Republic of China (ROC) with Dr. Sun as the first president (Zheng, 2012). This marked the transition of China from imperial to statehood and saw the coalescing of the consciousness of Chinese nationhood. The ethnosymbolic roots of Chinese nationalism permeated this consciousness, even the name of the Republic, ÖлªÃñ¹ú zhonghuaminguo, emphasised the belonging of the state to the Chinese ethnic nation as the first three characters of the name represent the ethnic Chinese nation. So, Chinese nationalism can be said to also equate to Chinese ethnonationalism, and as a nationalism that rested on the rich history of the Chinese people and the abstract conceptualisation of the following the tradition of great Chinese civilisations, Chinese nationalism is also beholden to a lot of nostalgia. Where Dr Sun and his fellow intellectuals pushed the creation of Chinese nationalism by appealing to the cultural heritage of Chinese civilisation, they combined this with modern western nationalist ideology that focused on a struggle for sovereignty, in this case against the Western imperial powers and the Qing rulers. As such, this nostalgia is driven by the experiences of the Chinese people during the perceived ‘century of humiliation’ °ÙÄê¹ú³Ü bainianguochi starting from the Opium War till 1945, where China struggled for self-determination only to be invaded by the Japanese prior to the Second World War (Fitzgerald, 2016; Townsend, 1992; Zheng, 2012). China, as the empire-turned-nation and heir to the great tradition of Chinese imperial civilisation, was successively beaten and this was seen as a deep shame to the Chinese people who under successively foreign oppressors, including the Manchus of the Qing Dynasty, longed for freedom and a return to glory for the Chinese nation. As such, when Mao announced the founding of the PRC in 1949, the legitimacy of the CCP in ruling the nation was built on Chinese nationalism and the part that the party played in defeating the Japanese. The CCP’s victory in the civil war was arguably also because they presented themselves as even more nationalist than the nationalist Kuomintang (KMT) that they chased out of the mainland (Gries, 2020). This close connection between the party’s legitimacy and Chinese nationalism has seen the CCP often fall back on nationalistic propaganda to shore up its position of power, most notably after the events of Tiananmen Square (Gries, 2020). With his ascension to the presidency, Xi Jinping has continued the use of Chinese nationalism to firm up the party’s hold on power, having often referred to China’s rise as the country’s national destiny, referencing the country’s glorious past and harping on the ‘century of humiliation’ that denied China its place among the world’s powers (Tan, 2023). In this current form of Chinese ethnonationalism, Xi’s slogan of ‘national rejuvenation’ helps to reinforce the concept that China, once great but humiliated by the predations of Western colonisers, is now reclaiming its previous majesty to fulfil the ‘China Dream’ (Tan, 2023). This creates the sense that China must stand up to Western powers due to their rightful placed in the world while it must also continue to address the humiliations of the past, of which Taiwan serves as a reminder of, and this creates the setting for competition with the United States and rising tensions with Taiwan. Taiwanese Nationalism: De-sinicised and Independent The case of Taiwanese nationalism is an interesting one. Of the three nationalisms examined in this article, Taiwanese nationalism is the youngest one, having come into existence only in recently. Furthermore, unlike the United States and China, there is no continuity and coherence between the nation and the state in Taiwan. The state governing and exerting authority over Taiwan’s population embodies and merges two distinct political visions, each tied to a separate national identity: Chinese and Taiwanese, as the ROC is ‘a product of Chinese history and Chinese nationalism’, having been imposed onto the island when the KMT lost the civil war and fled the mainland (Clark & Tan, 2012; Lepesant, 2018, p. 65). In fact, while the KMT exercised marital rule over the island under the regimes of Chiang Kai-shek and Chiang Ching-kuo, the party tried constantly to impose an essentialist Chinese nationalism that clashed with the memories and experience of most of the island’s population, especially those who were raised under Japanese rule (Lepesant, 2018). This directly restricted the development of a national consciousness that centred on Taiwanese-ness, which explains the relatively late creation of Taiwanese nationalism. While overseas Taiwanese who were exiled by the KMT had started to display ideologies that was a semblance of Taiwanese nationalism, it was not until the 1980s and the gradual democratisation of the island that this nationalism began to take root (Chiou, 2003; Clark & Tan, 2012; Wakabayashi, 2006; Wu, 2004). With the increasing calls for political liberalisation in the 1980s, Chiang Ching-kuo began the initial process of Taiwanisation, allowing for the appointments of Taiwanese who were ±¾Ê¡ÈË benshengren (Han-Chinese who were on the island before the 1949 migration) to political positions even in his own administration (Cabestan, 2005). This kickstarted the process of nation-building, which only moved into a higher gear with the democratisation of the island in the early 1990s as there developed a political imperative to create an identity that could unify the people on the island (Wakabayashi, 2006). Lee Teng-hui, as the president of Taiwan who oversaw the democratisation process, put his support behind the Taiwanisation movement, supporting the development of a nation-building programme that would spur the adoption of Taiwanese nationalism, against the wishes of the KMT old guard. Lee’s action in building up Taiwanese nationalism is best seen in his propagation of the idea of a ‘new Taiwanese’ national identity in his speech to the National Assembly and more concretely, the change in name for the ROC to the ROC on Taiwan (Chiou, 2003; Jacobs, 2007; Wakabayashi, 2006). As such, the content of Taiwanese nationalism cannot be separated from the complex history of the island. The roots of Taiwanese nationalism are traced to the imperial expansion of Japan in the late 1800s, while previously the island had some contact with various Chinese dynasties and a brief colonial period by the Dutch, the Qing had neglected the island which meant that Japanese colonialisation marked the modernisation of the island (Cabestan, 2005; Wakabayashi, 2006). Japanese colonial rule also sparked the development of a pan-Taiwanese identity rooted in a struggle for independence, and distinctly anti-colonial and anti-Japanese (Brown, 2004). This pan-Taiwanese identity covered all the residents of the island who were not Japanese and therefore was not just restricted to the ethnic Han Chinese. With democratisation and the push for the ‘new Taiwanese’ national identity under Lee, this pan-Taiwanese identity was used as the foundation to build a new national identity. However, this also meant that the aspects of this identity that focused on independence were subsumed into the new Taiwanese nationalism, which was further enhanced by the experiences of the Taiwanese people under KMT rule (Wakabayashi, 2006). For Taiwan, both Japanese colonial rule and the experience of the civil war of post-1945 China became the existence of the ‘others’ to the development of the Taiwanese sense of self (Wakabayashi, 2006). This therefore meant that Taiwanese nationalism was first and foremost a nationalism for an independent Taiwan. In 2000, with the election of Chen Shui-bian from the then opposition Democratic Peoples’ Party (DPP) to the presidency, Taiwanese nationalism took another step in its evolution. No longer was Taiwanese nationalism simply about the independent sovereignty of the island whilst maintaining the cultural affinity for the Chinese tradition as espoused by Lee, but now there was a clear de-Sinicised aspect to Taiwanese nationalism and national identity (Hughes, 2013; Wakabayashi, 2006). This was driven by the policies of the Chen administration which included initiatives to rectify Taiwan’s name, changes to institutions designed to promote unification with mainland China, attempts to change the ROC Constitution and most importantly, the re-orientation of the education curriculum to focus more on Taiwan and less on the mainland. This resulted in the evolution of Taiwanese national identity towards one that increasingly sidelined the culturally ethnic Chinese component, instead insisting a cultural makeup that was simultaneously Han Chinese, Japanese and Aboriginal Taiwanese (Brown, 2004; Hughes, 2013; Wu, 2004). Yet such a nationalism brings along issues given the precarious relationship between the island and its cross-strait neighbour. The Clash of Nationalisms This article aimed to examine the role that nationalism played in the rising tensions in the United States, China and Taiwan triangular relationship. The idea that nationalisms can be antagonistic to each other and lead to conflict is not entirely new, despite the lack of IR theories that appropriately accommodate for the impact of nationalism. Samuel Huntington (1996) in his book, Clash of Civilizations, argues that future global conflicts will be driven not by ideological or economic differences but by cultural and civilisational divisions due to the increasing interaction between civilisations as a result of globalisation. Huntington (1996) predicted that a rising and assertive East Asia, on the back of rapid economic development, would increasingly come into conflict with Western civilisation led by the United States, in part due to a difference in cultural values and geopolitical goals. Where some would argue that Huntington’s claims were oversimplified and may broadly reinforce cleavages, especially in the aftermath of 9/11 and the War on Terror, his basic premise provides an interesting starting point to examining the impact of nationalism on the USA–China–Taiwan relationship. While Huntington viewed the incoming conflict as drawn along civilisational lines, assuming that cultural similarities and affinities would be sufficient to create groupings of nation-states around the world that would come into conflict with each other, recent events have proven otherwise. In fact, cases like Donald Trump’s threat to put a 25% tariff on Canadian imports when he assumes the presidency in January 2025 serve as a reminder that nationalism can easily overpower any sense of cultural affinity, even between nations as closely connected and allied as the United States and Canada (Hale, 2024). The advent of modernity brought about the rise of nationalism in the nation-state, and in the bid to give the nation-state’s existence legitimacy, each nationalism was propagated as individually unique. And as such, while cultural civilisations may not be a cleavage that thoroughly defines the world today, nationalism seems to be one that could fit into Huntington’s theory instead. Given the unique nationalisms of the United States, China and Taiwan covered in the sections above, it also appears that what is happening in this triangular relationship is a conflict arising from diametrically opposed nationalisms, a ‘clash of nationalisms’ if you will. Figure 1 summarises the interactions between the nationalisms of the United States, China and Taiwan.  Figure 1. Interaction Between Nationalisms. The United States having built a national identity that centred on a higher calling to being a model nation and leader of the world sees its position at the top of the global hierarchy as sacrosanct. The reason why the concept of the ‘Thucydides trap’ has gained so much attention is because there is an inherent acknowledgement that no matter the ills that may plague the United States, it is unwilling to see the global primacy it has established after the end of the Cold War being challenged (Mazza, 2024). However, China’s ascendency on the back of its rapid economic growth and the fact that it managed to emerge from the 2007–8 Great Financial Crisis relatively unscathed has given life to the belief in the PRC that their anointed time has finally come. Driven by Xi’s desire to push Chinese ethnonationalism as a foundation for the PRC’s assertiveness in the international arena, the world is now witnessing a China that seeks to act like a great power, including a demand for regional hegemony (Mazza, 2024). Yet regional hegemony for the PRC set it in direct conflict with the United States as regional hegemony in East Asia would mean the United States having to pull back on its global primacy and cede control over the region where it has key allies like Japan and South Korea. And this is exacerbated by the anti-West element of Chinese ethnonationalism that holds the West, with the United States being symbolic of it, responsible for the century of humiliation and the country not being the rightful great power it should have long been. As the saying goes, one mountain cannot contain two tigers, the nationalisms of both the United States and the PRC are dependent on the countries fulfilling their self-perceived destiny of greatness which naturally puts them into conflict with each other and is reflected in Figure 1. Similarly, Figure 1 also shows how the nationalisms of China and Taiwan are in conflict. As mentioned above, Chinese ethnonationalism and the ‘China Dream’ are also about washing away the shame from the century of humiliation. Part of this humiliation stems from the losses to the Japanese in the two Sino-Japanese wars, of which the loss of the island of Taiwan serves as a reminder of and it is for this reason that Xi has made clear that reunification between Taiwan and the mainland is a core part of his ‘national rejuvenation’ (Sobolik, 2024). Yet, in Taiwan, the evolution and rise of Taiwanese nationalism have led to a strong Taiwanese national identity that rejects its relationship with the Chinese mainland; increasingly Taiwanese are rejecting the Beijing-led discourse of a common identity between them and the mainland Chinese, and polling shows an increasing majority of Taiwanese no longer identify as Chinese (Fifield, 2019; Wang, 2023). This sets up the two nations in a path for conflict, a worse-case scenario that experts are predicting gets ever closer, as Taiwanese independence is a redline for China that cannot be crossed, but any form of reunification for the island is incompatible with their unique and independent national identity (Kuo, 2022; Wu, 2004). On the flip side, the relationship between American nationalism and Taiwanese nationalism is somewhat complementary, as shown in Figure 1. In examining American nationalism above, we pointed out how much of American nationalism is driven by American primacy in the form of American exceptionalism. This exceptionalism has been shown to have a messianic fervour, with Badri (2024) arguing that this has led to America’s interventionist foreign policy since 1991. Yet this messianic fervour makes American nationalism the perfect complement for Taiwanese nationalism. As Taiwanese nationalism tends towards de-sinicisation and independence, it has also gone through pains to emphasise its democratisation as a key characteristic of its nationalism. This results in America becoming a natural support pillar for the objectives of Taiwanese nationalism, while America’s messianic tendencies lead it to want to support Taiwanese democracy. As a result, American and Taiwanese nationalism become complementary existences. However, that the nationalisms are in conflict do not necessarily explain the existence of the triangular relationship that has seen the Taiwan Strait become the geopolitical ‘hotspot’ that it is. In order to do so, it is important to remember that nationalism is a double-edged sword when used by governments (Gries, 2020; Tan, 2023). Since 2016, we have seen the respective governments in all three countries increasingly turn to nationalism to further their own agendas (Kuo, 2022; Restad, 2020). Trump won his first presidential victory on the back of his ‘Make America Great Again’ slogan, which implied that the greatness of the American nation had been allowed to wane by his political predecessor. In doing so, Trump had unleashed a torrent of populism built upon conservative American nationalism that centred upon how powerful and great the country was perceived at the end of the Cold War and the longing for a return to those days (Renshon, 2021). In China, Xi, as previously mentioned, turned to the concept of the ‘China Dream’ in his bid to secure the legitimacy of the CCP and his hold over power. In his elaboration, it was the preeminent task of the CCP to restore the past glory of the nation and thereby, turn the dream of a great power nation into a reality, which would aid in making life better for the Chinese people (Bhattacharya, 2019). The rise of Chinese ethnonationalism has been successful in legitimising the position of the CCP in the wake of the political turmoil of the early 2010s and increasingly we have seen assertive Chinese expressions of this ethnonationalism, be it in its ‘Wolf Warrior’ diplomacy or cases of Chinese international students in university campuses in places like Australia, United States and the United Kingdom who openly challenge their lecturers and peers who comment on issues like Taiwan and Hong Kong (Tan, 2023). While in Taiwan, the DPP under Tsai Ing-wen latched on to the anti-Chinese sentiment of the 2014 Sunflower Movement and harnessed Taiwanese nationalism and desire to exist as a sovereign people to win the 2016 presidential election from the KMT (Chen & Zheng, 2022; Clark et al., 2020). Since then, the DPP has increasingly relied on Taiwanese nationalism to secure itself electoral victories, as it provides a clear delineation on the Taiwanese/Chinese cleavage between itself and the opposition KMT, while also allowing the government to create a narrative that differentiates Taiwan from the mainland, and therefore rouse support for its cause for international recognition (Lee, 2024). In each of these countries, we have seen political leaders turning to nationalism for their own domestic agendas. However, using nationalism in such manner also means that there is a significant consequence when the desires and dreams of the nationalism cannot be fulfilled, especially for regimes that have built their legitimacy on said nationalisms. To that end, the escalation of tension in the Taiwan Strait becomes understandable. Taiwanese nationalism has led to Tsai and the DPP to insist on Taiwanese sovereignty, even without the need for actual independence, but this has crossed the CCP’s red line and Chinese ethnonationalism necessitates a reaction in the form of increased military activity. The United States, having been bound to support Taiwan due to the Taiwan Relations Act, and in part to reassert its global hegemon status, thus sees it as imperative that it continue to be involved in the situation in the Taiwan Strait, either through freedom of navigation movements or selling of arms. As each side escalates their foreign policy response to the Taiwan Strait issue, audience costs for the political leaders also increase. Having unleashed the forces of nationalism, any semblance that the political leader is contemplating backing down would have serious implications on the stability of the domestic regime. This is even more so given the looming economic challenges in each of the three nations. Conclusion Therefore, the triangular relationship between the United States, China and Taiwan is not merely a product of power struggles or ideological conflicts but a ‘clash of nationalisms’. The interplay of unique national identities, reinforced by domestic pressures, has intensified the geopolitical stakes in the Taiwan Strait, transforming it into a critical hotspot in global politics. In understanding this, we can therefore see how nationalism is in fact an important factor that influences the interactions of states in IRs theories. 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.Cite: Tan, O., & Tan, A. C. (2025). The ‘Clash of Nationalisms’ in the Contentious USA–Taiwan–China Relations. Journal of Asian Security and International Affairs, 12(2), 181-196. https://doi.org/10.1177/23477970251340743 (Original work published 2025) References Anderson B. (1983). Imagined communities. Verso. Badri A. (2024). The United States is a messianic state: Rhetorical roots in US foreign policy since 1991. Australian Journal of International Affairs, 79(1), 150–168. Bhattacharya A. (2019). Chinese nationalism under Xi Jinping revisited. India Quarterly, 75(2), 245–252. Billig M. (1995). Banal nationalism. Sage Publications. Brands H., & Gaddis J. L. (2021). The new cold war: America, China, and the echoes of history. Foreign Affairs, 100, 10. Brown M. J. (2004). Is Taiwan Chinese? The impact of culture, power, and migration on changing identities. University of California Press. Cabestan J.-P. (2005). Specificities and limits of Taiwanese nationalism. China Perspectives, 2005(62), 32–43. Calhoun C. (1997). Nationalism. University of Minnesota Press. Chen C.-J. J., & Zheng V. (2022). Changing attitudes toward China in Taiwan and Hong Kong in the Xi Jinping era. Journal of Contemporary China, 31(134), 250–266. Chiou C. L. (2003). Taiwan’s evolving nationalism. In Liew L. H., & Wang S. (Eds.), Nationalism, democracy and national integration in China (1st ed., pp. 107–121). RoutledgeCurzon. https://doi-org.libproxy1.nus.edu.sg/10.4324/9780203404294-10 Clark C., & Tan A. C. (2012). Taiwan's political economy: Meeting challenges, Pursuing Progress. Lynne Rienner Publishers. https://doi.org/10.1515/9781626375024 Clark C., Tan A. C., & Ho K. (2020). Was 2016 a realigning election in Taiwan? Asian Survey, 60(6), 1006–1028. Commager H. S. (1959). The origins and nature of American nationalism. In University P. S. (Ed.), Special collections: Oregon Public Speakers. Portland State University. Connor W. (1990). When is a nation? Ethnic and Racial Studies, 13(1), 92–103. Cox M. (2019). Nationalism, nations and the crisis of world order. International Relations, 33(2), 247–266. D’Anieri P. (1997). Nationalism and international politics: Identity and sovereignty in the Russian-Ukrainian conflict. Nationalism and Ethnic Politics, 3(2), 1–28. Department of Defense. (2000). Report on Implementation of Taiwan Relations Act (3390). Doyle D. H. (2009). Beginning the world over again: Past and future in American nationalism. In Nations and their histories: Constructions and representations (pp. 77–92). Springer. Fifield A. (2019, 26 December 2019). Taiwan’s ‘born independent’ millennials are becoming Xi Jinping’s lost generation. The Washington Post. https://www.washingtonpost.com/world/asia_pacific/taiwans-born-independent-millennials-are-becoming-xi-jinpings-lost-generation/2019/12/24/ce1da5c8-20d5-11ea-9c2b-060477c13959_story.html Fitzgerald J. (2016). The nationless state: The search for a nation in modern Chinese nationalism. In Chinese nationalism (pp. 56–85). Routledge. Gellner E. (1983). Nations and nationalism. Blackwell Publishing. Gries P. (2020). Nationalism, social influences, and Chinese Foreign Policy (pp. 63–84). https://doi.org/10.1093/oso/9780190062316.003.0004 Hale E. (2024, November 26). What are Trump’s plans for tariffs on China, Canada and Mexico? Al Jazeera. https://www.aljazeera.com/economy/2024/11/26/what-are-trumps-plans-for-tariffs-on-china-canada-and-mexico Hanania R. (2021). Graham Allison and the Thucydides trap myth. Strategic Studies Quarterly, 15(4), 13–24. Heiskanen J. (2019). Spectra of sovereignty: Nationalism and international relations. International Political Sociology, 13(3), 315–332. Heiskanen J. (2021). Nations and nationalism in international 
relations. In Carvalho B. D., Lopez J. Costa, & Leira H. (Eds.), Routledge handbook of historical international relations (1st ed., Vol. 1, pp. 244–252). Routledge. https://doi.org/10.4324/9781351168960 Hobsbawm E. (1990). Nations and nationalism since 1780: Programme, myth, reality. Cambridge University Press. Holsti K. J. (1980). Change in the international system: Interdependence, integration, and fragmentation. In Holsti O. R., Siverson R. M., & George A. L. (Eds.), Change in the international system (1st ed., pp. 23–53). Routledge. https://doi-org.libproxy1.nus.edu.sg/10.4324/9780429052187-2 Hughes C. R. (2013). Negotiating national identity in Taiwan: Between nativization and de-sinicization. In Ash R., Garver J. W., & Prime P. (Eds.), Taiwan’s democracy (pp. 51–74). Routledge. Hung H.-F. (2022). Clash of empires: From ‘Chimerica’ to the ‘New Cold War’. Cambridge University Press. Huntington S. P. (1996). The clash of civilizations and the remaking of world order. Simon & Schuster. Jacobs B. (2007). Lee Teng-hui and the Idea of ‘Taiwan’. The China Quarterly, 190, 375–393. https://doi.org/10.1017/S0305741007001245 Kovács B. (2022). Fear and securitisation. In Simon Z., & Ziegler T. D. (Eds.), European politics: Crises, fears and debates (pp. 121–137). L’Harmattan. Kowert P. A. (2012). National identity: Inside and out. In Origins of National Interests (pp. 1–34). Routledge. Kristol I. (1983). Reflections of a neo-conservative. Basic Books. Kuo M. A. (2022, 12 Sep 2022). Cross-strait Crisis and Taiwan’s National Identity. The Diplomat. https://thediplomat.com/2022/09/cross-strait-crisis-and-taiwans-national-identity/ Lee J. (2024). Taiwan and the ‘New Cold War’. EurAmerica, 54(1), 69–116. Lepesant T. (2018). Taiwanese youth and national identity under Ma Ying-jeou. In Jacobs J. B., & Kang P. (Eds.), Changing Taiwanese identities (1st ed., pp. 64–86). Routledge. Lieven A. (2012). America right or wrong: An anatomy of American nationalism. Oxford University Press, USA. Mazza M. (2024, March 31). Power is the answer in U.S. competition with China. Foreign Policy. https://foreignpolicy.com/2024/03/31/us-competition-china-great-power-cold-war/ Peters M. A., Green B., Mou C., Hollings S., Ogunniran M. O., Rizvi F., Rider S., & Tierney R. (2022). US–China Rivalry and ‘Thucydides’ Trap’: Why this is a misleading account. Educational Philosophy and Theory, 54(10), 1501–1512. https://doi.org/10.1080/00131857.2020.1799739 Posen A. S. (2022, March 17). The end of globalization? Foreign Affairs. https://www.foreignaffairs.com/articles/world/2022-03-17/end-globalization Renshon S. A. (2021). The Trump doctrine and conservative American nationalism. The Trump Doctrine and the Emerging International System, 3–38. Restad H. E. (2020). What makes America great? Donald Trump, national identity, and US foreign policy. Global Affairs, 6(1), 21–36. Ripley W. (2024, December 1). Taiwan’s President Lai Ching-te in Hawaii: A stopover that speaks volumes. CNN. https://edition.cnn.com/2024/12/01/asia/taiwan-lai-hawaii-china-intl-hnk/index.html Smith A. D. (1986). The ethnic origins of nations. Blackwell Publishing. Sobolik M. (2024, April 27). Xi’s imperial ambitions are rooted in China’s history. Foreign Policy. https://foreignpolicy.com/2024/04/27/xi-imperial-ambitions-chinese-history-empire-dynasty/ Tan A. C., & Chen B. (2013) China's competing/co-opting nationalisms. Pacific Focus, 28, 365–383. https://doi.org/10.1111/pafo.12013 Tan O. (2023, June 13). Riding the tiger: Ethno-nationalism and China’s Foreign Policy. The Diplomat. Taylor B. (2020, February 26). Taiwan flashpoint: What Australia can do to stop the coming Taiwan crisis. The Interpreter. https://www.lowyinstitute.org/publications/taiwan-flashpoint-what-australia-can-do-stop-coming-taiwan-crisis Townsend J. (1992). Chinese nationalism. The Australian Journal of Chinese Affairs, 27, 97–130. Trautsch J. M. (2016). The origins and nature of American nationalism. National Identities, 18(3), 289–312.  Wakabayashi M. (2006). Taiwanese nationalism and the ‘unforgettable others’. In Friedman E. (Ed.), China’s rise, Taiwan’s dilemmas, and international peace (pp. 3–21). Routledge. Waltz K. (1959). Man, the state, and war: A theoretical analysis. Columbia University Press. Wang A. (2023, 22 Apr 2023). ‘I am Taiwanese’: The threat of war from Beijing strengthens island’s identity. Hong Kong Free Press. https://hongkongfp.com/2023/04/22/i-am-taiwanese-the-threat-of-war-from-beijing-strengthens-islands-identity/ Wang G. (1988). The study of Chinese identities in Southeast Asia. In Cushman J., & Wang G. (Eds.), Changing identities of the Southeast Asian Chinese since World War II (pp. 1–22). Hong Kong University Press. Wells A. (2001). Sun’s three principles of the people: The principle of nationalism. In Wells A. (Ed.), The political thought of Sun Yat-sen: Development and impact (pp. 61–72). Palgrave Macmillan, UK. https://doi.org/10.1057/9781403919755_6 Wu D. Y.-H. (1991). The construction of Chinese and non-Chinese identities. Daedalus, 159–179. Wu Y.-S. (2004). Taiwanese nationalism and its implications: Testing the worst-case scenario. Asian Survey, 44(4), 614–625. Wuthnow J. (2020). System overload: Can China’s military be distracted in a war over Taiwan? National Defense University Press. Zheng D. (2012). On modern Chinese nationalism and its conceptualization. Journal of Modern Chinese History, 6(2), 217–234. https://doi.org/10.1080/17535654.2012.708233

Defense & Security
Conflict between China and Taiwan. China–Taiwan relations. 3d illustration.

Strategic Ambiguity or Strategic Clarity: China’s Rise and US Policy Towards the Taiwan Issue

by T.Y. Wang

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском Abstract Observers have noted that Washington’s policy of ‘strategic ambiguity’ aims not only to deter China from attacking Taiwan but also to keep Taipei from taking actions that may be deemed provocative by Beijing leaders. Remarks and actions taken by former United States President Joseph Biden seem to place America’s long-held ambiguous policy in doubt. It has been argued that a clear security commitment from Washington is likely to bolster Taiwan citizens’ unrealistic expectations of America’s defence support and their calls for independence, which will certainly invite Beijing’s violent responses. Employing the theory of deterrence and survey data collected in Taiwan during the past 20 years, this article examines this argument. The analysis shows that the policy of strategy ambiguity remains crucial for the peace and stability across the Taiwan Strait. As China has increasingly turned itself to become a revisionist, Washington’s policy requires a recalibration, and the adjustment does not have to be a binary choice between ambiguity and clarity. Donald Trump’s return to the White House with his transactional approach to international affairs makes US policy towards the Taiwan issue less predictable, potentially leading to a volatile Taiwan Strait during his second term. Introduction One of the key aspects of US policy towards Taiwan since 1979 has been its ambiguous posture. With an objective of maintaining cross-strait peace and stability, Washington’s policy is based on its version of the ‘one-China’ policy, the Taiwan Relations Act (TRA), the three United States–China communiques and ‘Six Assurances’ (Congressional Research Service, 2024). Under this framework, Washington acknowledges that there is only one China and maintains an unofficial relationship with Taipei. The United States supports Taiwan with weapons of a defensive character and will ‘resist any resort to force or other forms of coercion that would jeopardise the security, or the social or economic system, of the people on Taiwan’ (TRA, Section 2(6)) but it does not clarify what would trigger an American military response. The deliberate uncertainty about whether the United States would intervene in cross-strait conflicts distinctively characterises Washington’s policy of strategic ambiguity. Former United States President Joseph Biden’s repeated security pledges to Taiwan since taking office in 2021 seem to place this policy in doubt. Biden’s response to a reporter of CBS 60-Minutes was unequivocal. When being asked, ‘So unlike Ukraine, to be clear, sir, US forces—US men and women—would defend Taiwan in the event of a Chinese invasion?’ Without hesitation, Biden replied, ‘Yes, if in fact, there was an unprecedented attack’ (Pelley, 2022). Although White House officials later repeatedly indicated that America’s policy towards Taiwan had not changed, Biden’s remarks generated a new round of discussion (e.g., Benson, 2022; Christensen et al., 2022) since this was the fourth time that the President made such a pledge.1 Critics point out that Washington’s deliberate ambiguity about America’s military intervention is not merely designed to deter China from attacking Taiwan. By intentionally being vague on its defence commitment, the policy also intends to keep Taipei from taking actions that may be deemed provocative by Beijing leaders (Bush, 2006). Survey data have consistently shown that few on the island are willing to be ruled by the Chinese Communist government and the majority would opt for independence if a war with China can be avoided (Hsieh & Niou, 2005; Wang, 2017). An unconditional security guarantee from Washington is likely to bolster Taiwan citizens’ unrealistic expectations of America’s defence support and their calls for independence. Because Taiwan is a democracy, the popularly elected Taipei government could take aggressive actions under public pressure, which will certainly invite Beijing’s military attacks and drag the United States into an unwanted war with China. Employing the theory of deterrence and survey data collected in Taiwan during the past 20 years, this article attempts to examine this logic with the following research questions: What is the logic behind Washington’s policy of strategic ambiguity? Why is there a call for clarity in the first place? And, what are the concerns about a policy of clarity? What would Donald Trump’s second term as the President of the United States mean for Washington’s policy on Taiwan? The Functioning of Strategic Ambiguity Fierce fighting broke out between troops led by the Nationalist Party (Kuomintang or KMT) and the Chinese Communist Party (CCP) on the Chinese mainland at the end of the Second World War. Under the weight of corruption, the KMT government suffered a disastrous military defeat and retreated to the island of Taiwan. As geopolitical tension mounted, Washington signed a mutual defence treaty with Taipei to contain the expansion of Communism. Several major battles were fought in the 1950s and 1960s across the Taiwan Strait. With America’s assistance, Taipei thwarted Communist military attacks on offshore islands held by Taiwan. The 1970s saw a shift in China’s strategy away from a reliance on the ‘military liberation’ of the island to a wave of ‘peaceful initiatives’ for China’s unification. However, Chinese leaders continue to regard Taiwan as a renegade province and have refused to recognise it as an equal and legitimate negotiating partner. Attempting to coerce Taipei into acceptance of the unification formula known as ‘one country, two systems’, Beijing has repeatedly warned that it would use ‘any means it deems necessary, including military ones’ (State Council of the PRC, 1993). Taipei’s loss of United Nations (UN) membership in 1971 and the normalisation of relations between China and the United States in 1972 signified Beijing’s decisive diplomatic victory. China’s growing importance in international affairs has led many countries, including the United States, to break diplomatic relations with Taiwan. After the United States and China established official ties in 1979, Washington has maintained an ‘unofficial’ relationship with Taipei. With an aim to maintain cross-strait peace and stability, the policy of strategic ambiguity was gradually articulated in the subsequent years and has become America’s key policy towards the Taiwan issue. In essence, strategic ambiguity is a policy of deterrence aiming to prevent a target state from taking unwanted actions. The deterrent effect is accomplished by the deterring state’s threat of taking actions that will potentially deny the target state’s expected gains or punish it to the extent that the costs of the unwanted acts exceed the gains it hopes to acquire. In order to be effective, the deterring state needs to show that it (a) possesses sufficient retaliatory capability to deny the fruits of unwanted actions; and (b) has the resolve to use the force so that the target state is persuaded that the threats are credible (Chan, 2003; Christensen, 2002; Wang, 2010). As the world’s only superpower, few countries can withstand the weight of American power if it were deployed against them. Washington has also demonstrated that it has the resolve to use force, as the 1995–1996 Taiwan Strait Crisis has shown. Triggered by Beijing’s military exercises and missile tests aiming to intimidate Taiwan voters on the eve of the island country’s first popular presidential election, the Clinton administration responded by dispatching two aircraft carrier battle groups to the vicinity of Taiwan. Although some may question Washington’s resolve due to the perceived decline of American power, wars in Iraq and in Afghanistan still serve as reminders of its resolve of deploying military might. Previous literature has demonstrated that credible threat is not sufficient to deter unwanted behaviour, as an effective deterrence also needs convincing assurance (Christensen, 2002; Christensen et al., 2022; Schelling, 1966). The target state will have little incentive to comply with the deterring state’s demand if it believes that it will ultimately lose its principal values. This is why various United States administrations have repeatedly assured Chinese leaders that Washington does not support Taiwan independence lest Beijing use force to realise its cause of unification for fear of Taiwan’s permanent separation from China. The flip side of this logic is to remind Taipei that America’s security commitment is not without conditions. The goal is to discourage Taiwan from taking aggressive actions towards independence, which will certainly provoke military attacks from China. Thus, the potential of taking actions to impose costs that outweigh the benefits of an unwanted action is a form of deterrence. The prospect of inaction can also exert a deterrent effect as it can raise the expected cost of unwanted acts of the target state. Washington’s ambiguous posture is said to have the effect of ‘dual deterrence’ (Bush, 2006). On the one hand, it deters Beijing from using military force against Taiwan since Chinese leaders are unsure if Washington would be involved militarily. On the other hand, it dissuades Taipei from pursuing de jure independence so that cross-strait military conflicts can be avoided. Through a web of incentives and disincentives, Washington’s strategic ambiguity has been praised as one of the most successful foreign policies as it has maintained cross-strait peace and stability for several decades. Why the Call for Clarity? If Washington’s policy has been effective, why are there calls for change? The answer lies in China’s revisionist behaviours, which have become increasingly assertive and aggressive. Indeed, deterrence diplomacy is effective only when targeted actors are conditional revisionists. Christensen (2002) provides a useful typology of different political actors for analysis. Countries like Japan, France and the United Kingdom (UK) are ‘unprovokable friends’ of the United States. They may be annoyed with Washington’s policies from time to time, like France’s fury over a submarine deal after Australia cancelling a multi-billion-dollar order with a French company and turning to the United States and the UK for a new contract (Sanger, 2021). The governments of these countries have no intention to challenge America’s fundamental national interests. Nor does Washington see them as potential threats. While deterrence diplomacy is not needed for unprovokable friends, there are also ‘undeterrable ideologues’ to whom the threat of deterrence is futile. Political actors like Hitler’s Germany and Osama bin Laden’s Al-Qaeda network are determined to pursue their political objectives and simply cannot be dissuaded. In addition to unprovokable friends and undeterrable ideologues, there is a third type of political actor—‘conditional revisionists’. They are willing to exploit opponents’ weaknesses in order to change the status quo but would refrain from taking action unless opportunities arise. Because the deterring state can hold the target state’s prized possessions hostage while at the same time provide convincing assurance, the latter has the incentive to comply with the former’s demands. This logic underlies the success of strategic ambiguity because, for much of the time since 1979, China did not possess the capabilities to directly or indirectly coerce Taiwan or challenge America’s deterrence policy. The world has witnessed a different China since the end of the twentieth century as the country has experienced rapid economic expansion. Figure 1 shows that China’s annual GDP growth rates between 1981 and 2023 generally ranged from 7.5% to 10%. With its enormous economic resources, Beijing has launched an effort to modernise its military. During the 20-year period between 1989 and 2010, as Figure 2 demonstrates, China’s military expenditures as a percentage of government spending were between 7% and 17%, far exceeding those of Japan, France and the UK. In addition to acquiring new weapon systems, the People’s Liberation Army has also developed anti-access area denial capabilities, raising concerns among American officials (Maizland, 2020; Olay, 2024). Such capabilities aim to neutralise the United States and its allies’ ability to project power in the Western Pacific region, including in the area close to Taiwan. Beijing, in recent years, has aggressively expanded its military presence in the South China Sea (Centre for Preventive Action, 2022), engaged in border disputes with India, and constructed military outposts in Bhutan (Barnett, 2021). China has also built numerous ‘re-education camps’ in Xinjiang, engaged in ‘serious’ human rights violations against Uyghurs and other Muslim minorities in the region (UN Human Rights Office of the High Commissioner, 2022) and imposed repressive responses to the pro-democracy movement in Hong Kong (Wang, 2023). With Beijing’s continuing alignment with Moscow after Russia’s invasion of Ukraine, Chinese leaders have shown to the world that they are willing to defy international opinions and forcefully assert their growing power inside and beyond China’s boundaries.  Figure 1. China’s GDP Growth Rate: 1961–2023.Source: World Bank Group (various years-a).  Figure 2. Military Expenditure by Country as a Percentage of Government Spending: 1989–2023.Source: SIPRI (various years). In this context, aggregated national power has increasingly shifted to Beijing’s favour over the past decades. Figures 3 and 4 juxtapose Taiwan’s and China’s gross domestic product and total military expenditures since the late 1980s. Prior to 2000, as Figure 3 shows, China’s annual GDPs were only two to four times larger than Taiwan’s, but the ratio has expanded to more than 10 times since 2008. By 2010, China overtook Japan to become the world’s second largest economy, far exceeding Taiwan’s economic productivity. Meanwhile, China’s military spending has been 10–20 times that of Taiwan’s since 2009, as Figure 4 demonstrates. After Chinese leaders invalidated their promises of a ‘high-degree of autonomy’ to Hong Kong under the unification plan, observers believe Taiwan is their next target (Lopez, 2022). Since Tsai Ing-wen of the pro-independence Democratic Progressive Party (DPP) was elected Taiwan’s president in 2016, Beijing has furthered its effort of isolating Taipei internationally and escalated its belligerent behaviours by repeatedly dispatching naval vessels and warplanes circulating the island and violating its Air Defence Identification Zone (ADIZ; refer to Ministry of National Defence R.O.C., various years). In recent years, Chinese leaders further heightened their military pressure by repeatedly launched live-fire drills in water close to Taiwan, frequently with a record number of military aircraft and naval vessels (Ng & Wingfield-Hayes, 2024). China’s rapid technological advancement also allows it to infiltrate Taiwan’s IT infrastructure (Lonergan & Mueller, 2022). These developments have led to a warning from United States Navy Admiral John Aquilino in 2021 that China could be prepared to take Taiwan by force by 2027 (Lendon, 2021).  Figure 3. Ratio of China and Taiwan Gross Domestic Productivity: 1991–2023.Source: World Bank Group (various years-b) and National Statistics, R.O.C. (Taiwan) (various years).  Figure 4. Ratio of China and Taiwan Military Expenditures: 1989–2023.Source: SIPRI (various years). Observers, therefore, have noted that China is no longer a conditional revisionist but has turned into a revisionist that has the ability and intention to change the status quo. Some in the United States argue that ambiguity is unlikely to deter an increasingly assertive and threatening China towards Taiwan. Instead, they maintain, ‘[t]he time has come for the United States to introduce a policy of strategic clarity: one that makes explicit that the United States would respond to any Chinese use of force against Taiwan’ (Haass & Sacks, 2020). This is a view that the Biden administration also holds. Characterising China as a revisionist with both the intent and the ability ‘to reshape the international order’, the Biden administration acknowledged that China is the greatest challenger to the United States and its allies (White House, 2022, p. 23). Because ‘we cannot rely on Beijing to change its trajectory’, it is upon Washington to ‘shape the strategic environment around Beijing’ (Blinken, 2022). Thus, supporting Taiwan and strengthening its defence capabilities are crucial for America’s response to China’s growing coercion. Observers also point out that Washington’s ambiguous posture, while aiming to discourage unwanted actions of targeted states, may lead to miscalculation and risky behaviours. Leaders in both Beijing and Taipei have ‘obvious incentives to misrepresent their true perceptions concerning United States resolve’ (Kastner, 2006, p. 662). The tendency is particularly strong for Chinese leaders as the equation that previously made ambiguity a feasible policy has changed. Rather than maintain stability, it is argued, ambiguity may contribute to cross-strait instability and drag the United States into an unwanted conflict with China. In addition, no response to a Chinese military invasion of a democratic Taiwan would damage Washington’s reputation as the guardian of democracy and create the perception that the United States is not a reliable partner (Schmitt and Mazza, 2020). If American allies in the region conclude that Washington can no longer be counted on, they would be likely to accommodate Beijing’s demands as a result. Alternatively, some in the region may band together to balance a rising China, leading to tension and instability in one of the most dynamic areas of international commerce. Both would threaten America’s interests in the region and hurt Washington’s global leadership. Beijing’s forceful takeover of Taiwan would mean that China could then project its naval power beyond the first island chain, directly threatening the maritime security of the United States and its allies. Taiwan’s autonomy has also become a vital geopolitical interest and a national security issue for the United States due to the island’s dominant role in the semiconductor manufacturing market. It is estimated that the United States and other countries would lose access to 85% of all leading-edge microprocessors if China were to invade Taiwan tomorrow (Fadel, 2022). Beijing’s threatening military exercises, after United States House Speaker Nancy Pelosi’s visit to Taipei and the inauguration of pro-independence Lai Ching-te as Taiwan’s president, further underscore the need of revising the policy of strategic ambiguity. There have been a number of developments in the first Trump administration reflecting the growing sentiment that Beijing’s revisionist behaviour needs a robust and unambiguous response, including an unambiguous support for Taiwan. These included dispatching cabinet-level officials and military officers to Taipei and selling a large quantity of advanced weapons to Taiwan. The United States Congress also passed the Taiwan Travel Act of 2018 and the Taiwan Allies International Protection and Enhancement Initiative (TAIPEI) of 2020. The former permits high-level United States officials to travel to Taipei and meet their Taiwanese counterparts, while the latter aims to assist Taiwan in maintaining existing diplomatic relations. After Biden took office in 2021, his administration has further pursued a coherent and comprehensive approach for ‘broadening and deepening’ United States–Taiwan relations. It includes inviting Taiwan’s de factor ambassador to the United States as an official guest to the presidential inauguration (Blanchard, 2021), dispatching a delegation to Taipei sending a ‘personal signal’ of support from the President (Brunnstrom & Martina, 2021), providing large packages of arms sales (Chung et al., 2024), strengthening bilateral economic ties, and re-confirming Taiwan’s status as a major non-NATO ally (US Government Publishing Office, 2022). All of these efforts aim to advance the island country’s security, prosperity and respect in the international community. The Biden administration’s efforts to internationalise the Taiwan issue have been further noted. Wording like ‘the importance of peace and stability across the Taiwan Strait’ was mentioned at the United States–Japan (White House, 2021b), United States–Korea (White House, 2021a), Japan–Australia (Prime Minister of Australia, 2022) and G7 summits (European Council, 2021). For the first time, the issue of Taiwan’s security has been included in the communique of so many major powers’ summit meetings, which shows the Biden administration’s effort of building an international coalition to constrain a threatening China that will benefit Taiwan. In this context, Biden has repeatedly vowed to defend Taiwan, indicating that the United States would intervene militarily in the event of a Chinese invasion, prompting many to speculate if Washington has changed its long-standing policy of strategic ambiguity. Issues with Clarity Critics point out that a policy of strategic clarity involves risks. Chief among those is a clear security pledge like the one given by Biden, which is likely to bolster Taiwan citizens’ unrealistic expectation of America’s defence support, which will then motivate the public’s calls for independence. Under public pressure, the popularly elected Taipei government could take aggressive actions and will provoke a violent reaction from Beijing. Meanwhile, the public’s overconfidence does not match America’s military actions that would support an ally or a friend (Benson, 2022). The Biden administration’s decision to provide Ukraine with security assistance but refrain from putting American boots on the ground clearly demonstrates Washington’s reluctance to undertake direct military intervention in overseas conflicts. Taiwan citizens’ impracticable confidence in the United States’ defence commitment may destabilise the cross-strait relationship and bring harm to the island country. Thus, some pundits consider Biden’s move towards a policy of clarity ‘reckless’ (e.g., Beinart, 2021). The above concern is a valid one. Figure 5 presents the trend of public preferences on Taiwan’s international status during the past two decades. The top two dashed lines show that roughly 15%–35% of Taiwanese citizens prefer the status quo indefinitely, and about one-third of them are ‘undetermined’ regarding the island’s future status in the international community. The middle two solid lines show that there is a small but increasing proportion of respondents prefer to keep the status quo now but move towards independence in the future, and that proportion has increased quite dramatically since 2018. An even smaller and declining proportion of them favour unification as a final goal. The bottom two dashed lines indicate that less than 10% of the island’s residents want to pursue immediate unification or independence. Taken together, the figure demonstrates that very few on the island want to be ruled by the Chinese Communist government as it is now. The vast majority of them want to maintain the status quo and prefer either a ‘kinder, gentler’ version of de facto independence, that is, maintaining status quo forever, or a permanent separation from China in the future.  Figure 5. Taiwan Citizens’ Position on Independence and Unification: 1994–2024.Source: Election Study Center, National Chengchi University (January 13, 2025). While Taiwan’s citizens prefer to preserve their democratic way of life, they understand the pursuit of independence will encounter violent reaction from China. Figure 6 shows that the majority of the public express a preference for de jure independence if cross-strait conflicts could be averted, but support for independence declines substantially if they believe that Beijing would launch an attack on Taiwan.2 Figure 7 also shows that 50%–60% of island citizens consistently believe that the United States will come to Taiwan’s defence if China launches an attack. The level of confidence is particularly high among supporters of the ruling DPP, which has a plank of pursuing Taiwan’s de jure independence. The above figures reveal that the public’s preferences over the island’s future relations with China are consistently conditioned by perceived risks. That is, they will refrain from declaring Taiwan’s independence if it involves such high risks as warring with China. The conditionality of Taiwanese citizens’ preferences indicates that, collectively, they are conditional revisionists; that is, they would refrain from taking actions unless opportunities arise. In addition, the public is highly confident that the United States will come to Taiwan’s aid if there is a cross-strait military conflict. Thus, strategic clarity is likely to further bolster Taiwan citizens’ unrealistic expectation of Washington’s security commitment as well as their support for policies that may be deemed provocative by Beijing leaders.  Figure 6. Support Independence With/Without War With China, 2003–2024.Source: Program in Asian Security Studies (Various years).  Figure 7. Taiwan Citizens’ Confidence in United States Security Commitment: 2003–2020.Source: Program in Asian Security Studies (Various years). The above findings appear to validate the concerns of proponents of strategic ambiguity, but a recent study with panel data collected on the island may alleviate such a concern (Wang & Cheng, 2023). Contrary to our expectations, Taiwanese citizens’ confidence in Washington’s security commitment has not increased but, in fact, decreased after Biden’s security pledges. The decline in confidence was mainly due to the pro-independence respondents’ shifting views. As noted, supporters of Taiwan independence historically have a higher level of confidence in America’s security commitment, which is cognitively consistent with their determination of pursuing the island country’s permanent separation from China. The war in Ukraine may be an awakening call for them as it demonstrates the Western hesitancy to undertake direct military intervention in overseas conflicts. The United States can have similar avoidance in a situation involving Taiwan. Despite Biden’s verbal assurance, actions speak louder than words. Pro-independence citizens’ shifting attitudes thus explain the declining confidence in Washington’s security commitment, which can also soften their calls for aggressive actions towards independence. Because panel analysis has long been considered one of the best ways of examining persistence and change of individuals’ attitudes, the results of the study are worth noting. Another identified pitfall of strategic clarity is that it signals what one ‘is prepared to take a risk for’ and ‘what one would ignore’ (Chang-Liao & Fang, 2021, p. 51). Given the heavy costs and uncertain outcomes, Chinese leaders are likely to avoid launching direct military attacks on Taiwan. Instead, they have employed and may continue to employ such ‘grey zone’ tactics as imposing economic sanctions on Taiwanese products, attacking the island’s information technology infrastructure, violating the island’s ADIZ and conducting military exercises for a de facto blockade. Without embarking on a conventional invasion of Taiwan that a policy of clarity intends to deter, these ‘low-intensity’ tactics can nonetheless have the effect of exhausting Taipei’s resources and eroding its resolve. Rather than discouraging Beijing’s aggressive and threatening behaviours, strategic clarity could undercut the effect of Washington’s deterrence policy. Such a criticism is also a legitimate concern, but it ignores the fact that Beijing embarked on grey zone approaches against Taiwan long before recent calls for clarity. This means that without setting a clear threshold for intervention has not stopped Chinese leaders from taking low-intensity provocations. China’s increasing clout and the perceived decline of America’s relative power seem to be the underlying factors to Beijing’s aggressive behaviour. Chinese leaders are apparently counting on Washington being ‘reactive and risk-averse’ (Sussex & Moloney, 2021). It will be incumbent on the United States to show its determination to confront China with coordinated responses. America’s policy of strategic ambiguity, therefore, remains crucial for cross-strait peace and stability, but it needs to be recalibrated. As China increasingly turns out to be a revisionist power, it is necessary for Washington to adjust its ambiguous posture in order to counter Beijing’s increasingly belligerent behaviour. The recalibration does not have to be a binary choice between ambiguity and clarity. Both policies can be treated as two ends of a continuum and can be adjusted accordingly. Given Beijing’s intense pressure campaign, Washington can step up its commitment to help Taiwan to defend itself for protecting democracy and America’s national interests. These measures include the development of a ‘porcupine’ defence strategy by enhancing Taipei’s asymmetric warfare capability, building military stockpile and forming an effective civil defence. Washington can also expand Taiwan’s integration with the international community lest Beijing employ its grey zone tactics to further isolate Taipei and deepen the island’s economic vulnerability. Ultimately, a successful deterrence policy will also depend on Washington’s convincing assurance that it would not support Taiwan’s pursuit of independence. Chinese leaders have a deep suspicion that the United States has a covert attempt to undermine China’s unification with Taiwan. America’s recalibration of its policy of strategic ambiguity is likely to be interpreted as a confirmation of their suspicion. If Beijing leaders believe that America’s policy will lead to Taiwan’s permanent separation from China, they are unlikely to submit to Washington’s demands. Trump 2.0 Donald Trump’s 2025 return to the White House for a second term as the president of the United States has added uncertainty to the policy of strategic ambiguity. Observers have noted that Trump is sceptical of the value of friends and allies as well as the benefits of international partnerships and alliances (Bush & Haas, 2024). Under the slogan of ‘America First’, he removed the United States from the Trans-Pacific Partnership (Lobosco, 2018), the Paris Climate Accord (White House, 2017, 2025a), the Intermediate-Range Nuclear Forces (INF) Treaty (Pompeo, 2019) and the UN Human Rights Council (White House, 2025b) and has mandated a comprehensive review of all international organisations to determine if the United States should withdraw its membership from or end its support for these organisations (White House, 2025b). He repeatedly admonished members of NATO, South Korea and Japan for not paying enough for United States protection (Reuters, 2024). His contempt for alliances and security partnerships has upended decades of American international engagement. In this context, two developments have direct implications for Taiwan. First, Trump has expressively suggested that the United States acquire Greenland (Erlanger & Smialek, 2025), take control of the Panama Canal (New York Times, 2025), and annex Canada as the 51st state of the United States (Colvin, 2025). His ambition for territory expansion has alarmed the world community3 and undermines an international principle that borders should not be changed through force or coercion. Trump’s threat regarding Greenland, the Panama Canal and Canada could potentially embolden Chinese leaders to consider taking Taiwan by force (Sacks, 2025). Second, unlike Biden’s emphasis on the defence of democratic values in his support for American allies, Trump has taken a transactional approach to international affairs. His dealing with the Russo–Ukrainian conflict is a case in point. The Trump administration has placed heavy pressure on the Ukrainian government to sign over a huge portion of its mineral wealth to the United States in exchange for helping the country to defend itself (Taub, 2025). Some speculate that Trump’s alignment with Russia represents a strategy of ‘reverse Kissinger’ aiming to counter China’s rise (Editorial Board, 2025). Though such a strategy may potentially benefit Taiwan, many on the island are nevertheless alarmed by the Trump administration’s approach to the conflict, questioning if they can continue to count on American support (Buckley & Chien, 2025). Because Trump has expressed his desire to negotiate a broad economic deal with Beijing (Swanson, 2025), the Chinese government may offer concessions on a trade deal in exchange for Washington’s positions on Taiwan without Taipei’s involvement. Indeed, Trump has expressed scepticism about Taiwan’s value compared to China (Llorente, 2024). He previously also questioned America’s ability to defend the island country (Bolton, 2020). Even though the State Department recently removed the long-standing phrase that ‘[w]e do not support Taiwan independence’ from its Taiwan factsheet (US Department of State, 2021), leading some to speculate if it represents a strategic shift (Tao, 2025), Trump’s dubious attitude about the island country was fully displayed in a previous interview. Speaking in a transactional tone, Trump argued that ‘Taiwan should pay us for defence’ because ‘we’re no different than an insurance company. Taiwan doesn’t give us anything’. He also complained that Taiwan had taken ‘almost 100%’ of the chip industry from the United States (Kharpal, 2024). In response to Trump’s inimical demands, by displaying Taiwan’s tangible value to the United States, the Taipei government has pledged to increase its defence spending to 3% of Taiwan’s gross domestic product (Office of the President, Republic of China [Taiwan], 2025). The Taiwan Semiconductor Manufacturing Company (TSMC)—the world’s largest chip manufacturer that produces the most advanced semiconductors—also announced plans to invest an additional $100 billion to expand its operations in the United States (Tang & Price, 2025).4 While the investment announcement was viewed favourably by Trump (Chung & Lee, 2025), it may be interpreted by Chinese leaders as a lack of resolve on the part of his administration due to Trump’s scepticism and versatile mindset. Given that credible threat is key to deterrence policy, the future and effectiveness of strategic ambiguity in Trump’s second term will be uncertain.ConclusionThe Taiwan Strait has been described as ‘the most dangerous place on Earth’ (Economist, 2021). A military conflict between China and Taiwan will have significant consequences. In addition to causing damage and human suffering on both sides, such a conflict could escalate into a direct confrontation involving two nuclear powers, threaten regional stability in East Asia, and undermine the prosperity of one of the most dynamic regions in the global economy. Washington’s policy of strategic ambiguity has been effective in maintaining cross-strait peace and stability for several decades, but a recalibration is necessary due to an increasingly powerful and assertive China. Instead of changing to a policy of strategic clarity, the United States can adjust its ambiguous posture through strengthening Taiwan’s defence capabilities and advancing its international integration. By assuring that Washington seeks regional peace and stability, not Taiwan’s independence, the effects of the deterrence policy can be maintained, and risks of cross-strait military conflicts can be minimised. Trump’s return to the White House nevertheless has disrupted America’s traditional foreign policy of promoting freedom and democracy. Although he has not clarified the administration’s position on America’s support for Taiwan, his transactional approach suggests that he might use the cross-strait relationship as leverage over Beijing. Washington’s policy towards Taiwan is expected to be less predictable, potentially leading to a volatile Taiwan Strait during Trump’s second term. Declaration of Conflicting Interests The author declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.FundingThe author received no financial support for the research, authorship and/or publication of this article.Footnotes1. Biden previously provided such an assurance in May of 2022 (Kanno-Youngs & Baker, 2022), October of 2021 (Hunnicutt, 2021) and August of 2021 (ABC News, 2021). 2. The attempts to explore the conditionality of Taiwanese residents’ policy preferences include Hsieh and Niou (2005), Niou (2004) and Wu (1993, 1996). 3. There have been strong public reactions in Canada to Trump’s threats to make Canada the 51st state of the United States. Canadian Prime Minister Justin Trudeau also met with British King Charles III, the country’s head of state, to discuss the issue (Hui, 2025). 4. Without making a security commitment, Trump indicated that TSMC’s investment ‘will at least give us a position where we have, in this very, very important business, we would have a very big part of it in the United States’ (Tang & Price, 2025). References ABC News. (2021, August 19). Full transcript of ABC News’ George Stephanopoulos’ interview with President Joe Biden. Retrieved, 12 October 2021, from https://abcnews.go.com/Politics/full-transcript-abc-news-george-stephanopoulos-interview-president/story?id=79535643 Barnett R. (2021, May 7). China is building entire villages in another country’s territory. Foreign Policy. Retrieved, 9 May 2021, from https://foreignpolicy.com/2021/05/07/china-bhutan-border-villages-security-forces/ Beinart P. (2021, May 5). Biden’s Taiwan policy is truly, deeply reckless. The New York Times. Retrieved, 28 May 2021, from https://www.nytimes.com/2021/05/05/opinion/biden-taiwan-china.html Benson B. (2022, May 25). Why it makes sense for the US to not commit to defending Taiwan. The Washington Post. Retrieved, 25 May 2022, from https://www.washingtonpost.com/outlook/2022/05/25/biden-taiwan-strategic-ambiguity/ Blanchard B. (2021, January 20). Taiwan-Biden ties off to strong start with invite for top diplomat. Reuters. Retrieved, 10 March 2025, from https://www.reuters.com/article/world/asia-pacific/taiwan-biden-ties-off-to-strong-start-with-invite-for-top-diplomat-idUSKBN29Q01M/ Blinken A. J. (2022, May 26). The administration’s approach to the People’s Republic of China. US Department of State. Retrieved, 26 October 2022, from https://www.state.gov/the-administrations-approach-to-the-peoples-republic-of-china/ Bolton J. (2020, June 17). John Bolton: The scandal of Trump’s China policy. The Wall Street Journal. Retrieved, 4 March 2025, from https://www.wsj.com/articles/john-bolton-the-scandal-of-trumps-china-policy-11592419564 Brunnstrom D., & Martina M. (2021, April 13). Biden sends unofficial delegation to Taiwan in ‘personal signal’. Reuters. Retrieved, 28 May 2021, from https://www.reuters.com/world/china/biden-sends-unofficial-delegation-taiwan-underscore-commitment-white-house-2021-04-13/ Buckley C., & Chien A. C. (2025, February 25). Taiwan watches Trump undercut Ukraine, hoping it won’t be next. The New York Times. Retrieved, 25 February 2025, from https://www.nytimes.com/2025/02/25/world/asia/trump-ukraine-taiwan.html Bush R. (2006). The US policy of dual deterrence. In Tsang S. (Ed.), If China attacks Taiwan: Military strategy, politics and economics (pp. 35–53). Routledge. Bush R., & Haas R. (2024, October 3). How would the Trump or Harris administration approach Taiwan? Brookings. https://www.brookings.edu/articles/how-would-the-trump-or-harris-administration-approach-taiwan/ Centre for Preventive Action. (2022, May 4). Territorial disputes in the South China Sea. Global Conflict Tracker, Council on Foreign Relations. Retrieved, 10 September 2022, from https://www.cfr.org/global-conflict-tracker/conflict/territorial-disputes-south-china-sea Chan S. (2003). Extended deterrence in the Taiwan Strait: Learning from rationalist explanations in international relations. World Affairs, 166(2), 109–125. Chang-Liao N.-C., & Fang C. (2021). The case for maintaining strategic ambiguity in the Taiwan Strait. Washington Quarterly, 44(2), 45–60. Christensen T. J. (2002). The contemporary security dilemma: Deterring a Taiwan conflict. Washington Quarterly, 25(4), 7–21. Christensen T., Fravel T., Glaser B., Nathan A., & Weiss J. C. (2022). How to avoid a war over Taiwan: Threats, assurances, and effective deterrence. Foreign Affairs. Retrieved, 1 December 2022, from https://www.foreignaffairs.com/china/how-avoid-war-over-taiwan Chung Y.-C., & Lee H.-Y. (2025, March 8). Trump softens stance on Taiwan after TSMC’s $100b investment. Focus Taiwan. https://www.techinasia.com/news/trump-softens-stance-on-taiwan-after-tsmcs-100b-investment Chung Y.-C., Wu S.-W., & Huang F. (2024, November 30). US approves US$387 million arms sales to Taiwan. Focus Taiwan. Retrieved, 10 March 2025, from https://focustaiwan.tw/politics/202411300004 Colvin J. (2025, February 9). Trump says he is serious about Canada becoming 51st state in Super Bowl interview. Associated Press. Retrieved, 3 March 2025, from https://apnews.com/article/canada-gulf-america-super-bowl-bret-baier-musk-7e1959c7d430899b01629c800db6f17b Congressional Research Service. (2024, May 23). Taiwan: Background and US relations. In Focus. Retrieved, 9 November 2024, from https://crsreports.congress.gov/product/pdf/IF/IF10275 Economist. (2021, May 1). The most dangerous place on Earth. Retrieved, 16 May 2021, from https://www.economist.com/leaders/2021/05/01/the-mostdangerous-place-on-earth Editorial Board. (2025, March 11). What’s the strategy behind Trump’s pivot to Russia? Washington Post. Retrieved, 15 March 2025, from https://www.washingtonpost.com/opinions/2025/03/11/trump-russia-ukraine-reverse-kissinger/ Election Study Center, National Chengchi University. (January 13, 2025). Trends of core political attitudes. https://esc.nccu.edu.tw/PageDoc/Detail?fid=7801&id=6963 Erlanger S., & Smialek J. (2025, January 28). Trump alarms Denmark in an icy exchange over Greenland. New York Times. Retrieved, 9 March 2025, from https://www.nytimes.com/2025/01/26/world/europe/trump-greenland-denmark.html?searchResultPosition=3 European Council. (2021, June 13). Our shared agenda for global action to build back better. Carbis Bay G7 Summit Communiqué. Retrieved, 6 September 2021, from https://www.consilium.europa.eu/media/50361/carbis-bay-g7-summit-communique.pdf Fadel L. (2022, August 18). How the new CHIPS Act could ease supply constraints. National Public Radio. Retrieved, 19 August 2022, from https://www.npr.org/2022/08/18/1118094330/how-the-new-chips-act-could-ease-supply-constraints  Haass R., & Sacks D. (2020, September 2). American support for Taiwan must be unambiguous. Foreign Affairs. Retrieved, 15 April 2021, from https://www.foreignaffairs.com/articles/united-states/american-support-taiwan-must-be-unambiguous Hsieh J. F.-S., & Niou E. M. S. (2005). Measuring Taiwanese public opinion on Taiwanese independence. The China Quarterly, 181(1), 158–168. Hui S. (2025, March 3). King Charles III welcomes Canada’s Trudeau for talks overshadowed by Trump’s annexation comments. Associated Press. Retrieved, 4 March 2025, from https://apnews.com/article/king-charles-trudeau-canada-trump-a475587880917f210c8aa40d252e790d Hunnicutt T. (2021, October 22). Biden says United States would come to Taiwan’s defense. Reuters. Retrieved, 16 January 2023, from https://www.reuters.com/world/asia-pacific/biden-says-united-states-would-come-taiwans-defense-2021-10-22/ Kanno-Youngs Z., & Baker P. (2022, May 23). Biden pledges to defend Taiwan if it faces a Chinese attack. The New York Times. Retrieved, 25 May 2022, from https://www.nytimes.com/2022/05/23/world/asia/biden-taiwan-china.html Kastner S. L. (2006). Ambiguity, economic interdependence, and the US strategic dilemma in the Taiwan Strait. Journal of Contemporary China, 15(49), 651–669. Kharpal A. (2024, July 18). Trump says Taiwan should pay the US for defense; shares of chip giant TSMC fall. CNBC. https://www.cnbc.com/2024/07/17/trump-says-taiwan-should-pay-the-us-for-defense-shares-of-tsmc-fall.html Lendon B. (2021, March 24). Chinese threat to Taiwan ‘closer to us than most think’, top US admiral says. CNN. Retrieved, 31 March 2021, from https://www.cnn.com/2021/03/24/asia/indo-pacific-commander-aquilino-hearing-taiwan-intl-hnk-ml/index.html Llorente V. (2024, July 16). The Donald Trump interview transcript. Bloomberg Businessweek. https://www.bloomberg.com/features/2024-trump-interview-transcript/?sref=rjdgzTGZ Lobosco K. (2018, December 29). Trump pulled out of a massive trade deal. Now 11 countries are going ahead without the US. CNN. Retrieved, 12 November 2024, from https://www.cnn.com/2018/12/29/politics/tpp-trade-trump/index.html Lonergan E., & Mueller G. B. (2022, August 15). What are the implications of the cyber dimension of the China-Taiwan crisis? Council on Foreign Relations. Retrieved, 6 September 2022, from https://www.cfr.org/blog/what-are-implications-cyber-dimension-china-taiwan-crisis  Lopez G. (2022, March 20). Is Taiwan next? The New York Times. Retrieved, 11 April 2022, from https://www.nytimes.com/2022/03/20/briefing/taiwan-china-ukraine-russia.html Maizland L. (2020, February 5). China’s modernizing military. Council on Foreign Relations. Retrieved, 1 May 2021, from https://www.cfr.org/backgrounder/chinas-modernizing-military Ministry of National Defence R.O.C. (various years). Military news update. https://www.mnd.gov.tw/English/PublishTable.aspx?types=Military%20News%20Update&Title=News%20Channel National Statistics, R.O.C. (Taiwan). (various years). Macro database. Retrieved, 13 March 2025, from https://nstatdb.dgbas.gov.tw/dgbasAll/webMain.aspx?sys=100&funid=dgmaind New York Times. (2025, March 5). Full transcript of President Trump’s speech to Congress. Retrieved, 5 March 2025, from https://www.nytimes.com/2025/03/04/us/politics/transcript-trump-speech-congress.html Ng K., & Wingfield-Hayes R. (2024, October 22). China holds live-fire drills on island closest to Taiwan. BBC. Retrieved, 5 March 2025, from https://www.bbc.com/news/articles/c3rlrv1qewqo Niou E. M. S. (2004). Understanding Taiwan independence and its policy implications. Asian Survey, 44(4), 555–567. Office of the President, Republic of China (Taiwan). (2025, February 14). President Lai holds press conference following high-level national security meeting. Retrieved, 27 February 2025, from https://english.president.gov.tw/News/6908 Olay M. (2024, September 16). Threat from China increasing, Air Force official says. US Department of Defense. Retrieved, 2 March 2025, from https://www.defense.gov/News/News-Stories/Article/Article/3907669/threat-from-china-increasing-air-force-official-says/#:~:text=%22I’ve%20been%20closely%20watching,Air%20and%20Space%20Force%20personnel Pelley S. (2022, September 18). President Joe Biden: The 2022 60 Minutes interview. CBS 60-Minutes. Retrieved, 10 October 2022, from https://www.cbsnews.com/news/president-joe-biden-60-minutes-interview-transcript-2022-09-18/ Pompeo M. R. (2019, August 2). US withdrawal from the INF Treaty on August 2, 2019. US Department of State. Retrieved, 12 November 2024, from https://2017-2021.state.gov/u-s-withdrawal-from-the-inf-treaty-on-august-2-2019/ Prime Minister of Australia. (2022, October 22). Australia-Japan Leaders’ Meeting joint statement. Retrieved, 10 December 2023, from https://www.pm.gov.au/media/australia-japan-leadersmeeting-joint-statement Program in Asian Security Studies. (Various years). Taiwan National Security Survey. https://sites.duke.edu/tnss/ Reuters. (2024, November 6). Trump’s US election win may bring NATO members’ defense spending back into focus. https://www.reuters.com/world/trumps-us-election-win-may-bring-nato-members-defense-spending-back-into-focus-2024-11-06/ Sacks D. (2025, February 21). Trump is making Taiwan more vulnerable. Council on Foreign Relations. Retrieved, 27 February 2025, from https://www.cfr.org/blog/trump-making-taiwan-more-vulnerable Sanger D. (2021, October 29). Secret talks and a hidden agenda: Behind the US defense deal that France called a ‘betrayal’. New York Times. Retrieved, 4 September 2022, from https://www.nytimes.com/2021/09/17/us/politics/us-france-australia-betrayal.html Schelling T. (1966). Arms and influence. Yale University Press. Schmitt G., & Mazza M. (2020, September 17). The end of ‘strategic ambiguity’ regarding Taiwan. American Enterprise Institute. Retrieved, 16 June 2021, from https://www.aei.org/op-eds/the-end-of-strategic-ambiguity-regarding-taiwan/ SIPRI. (various years). SIPRI military expenditure database. Retrieved, 13 March 2025, from https://milex.sipri.org/sipri State Council of the PRC. (1993). The Taiwan question and reunification of China. Beijing Review, 36(36), 5–6. Sussex M., & Moloney C. (2021, July 6). How the US can recapture escalation control. Strategy Bridge. Retrieved, 6 September 2022, from https://thestrategybridge.org/the-bridge/2021/7/6/how-the-us-can-recapture-escalation-control?rq=escalation Swanson A. (2025, February 19). Trump eyes a bigger, better trade deal with China. New York Times. Retrieved, 4 March 2025, from https://www.nytimes.com/2025/02/19/business/economy/trump-china-trade-deal.html Tang D., & Price M. L. (2025, March 3). Giant chipmaker TSMC to spend $100B to expand chip manufacturing in US, Trump announces. Associated Press. Retrieved, 5 March 2025, from https://apnews.com/article/trump-tsmc-chip-manufacturing-tariffs-42980704ffca62e823182422ee4b7b83 Tao B. X. (2025, February 18). Did the US just change its Taiwan policy? The Diplomat. Retrieved, 6 March 2025, from https://thediplomat.com/2025/02/did-the-us-just-change-its-taiwan-policy/ Taub A. (2025, February 25). Trump’s Ukraine mineral deal is seen as ‘protection racket’ diplomacy. New York Times. Retrieved, 4 March 2025, from https://www.nytimes.com/2025/02/25/world/europe/trump-us-ukraine-mineral-deal.html?searchResultPosition=3 UN Human Rights Office of the High Commissioner. (2022, August 31). OHCHR assessment of human rights concerns in the Xinjiang Uyghur Autonomous Region, People’s Republic of China. United Nations. Retrieved, 10 September 2022, from https://www.ohchr.org/sites/default/files/documents/countries/2022-08-31/22-08-31-final-assesment.pdf US Department of State. (2021, January 20). Major non-NATO ally status [Fact sheet]. Retrieved, 18 September 2022, from https://www.state.gov/major-non-nato-ally-status/ US Government Publishing Office. (2022). Public Law 117-263—James M. Inhofe National Defense Authorization Act for Fiscal Year 2023. GovInfo. Retrieved, 10 March 2025, from https://www.govinfo.gov/content/pkg/PLAW-117publ263/pdf/PLAW-117publ263.pdf Wang T.Y. (2010). Cross-strait rapprochement and US policy toward the Taiwan issue. Issues & Studies, 46(3), 129–149. Wang T.Y. (2017). Taiwan citizens’ views on cross-strait relations: Pragmatic but ambivalent. In Cheng T. J., & Lee W.-C. (Eds.), National security, public opinion and regime asymmetry: A six country study (pp. 21–48). World Scientific. Wang T.Y. (Ed.). (2023). Hong Kong and the 2019 anti-extradition bill movement [Special issue]. Journal of Asian and African Studies, 58(1). https://doi.org/10.1177/00219096221124983 Wang T.Y., & Cheng S.-F. (2023). Strategic clarity and Taiwan citizens’ confidence in US security commitment. Asian Survey, 64(1), 54–78. White House. (2017, June 1). Statement by President Trump on the Paris Climate Accord. Retrieved, 12 November 2024, from https://trumpwhitehouse.archives.gov/briefings-statements/statement-president-trump-paris-climate-accord/ White House. (2021a, May 21). US-ROK leaders’ joint statement [Briefing room]. Retrieved, 6 September 2021, from https://www.whitehouse.gov/briefing-room/statements-releases/2021/05/21/u-s-rok-leaders-joint-statement/ White House. (2021b, April 16). US-Japan joint leaders’ statement: ‘US–Japan global partnership for a new era’ [Briefing room]. Retrieved, 10 December 2023, from https://www.whitehouse.gov/briefing-room/statements-releases/2021/04/16/u-s-japan-joint-leadersstatement-u-s-japan-global-partnership-for-a-new-era/ White House. (2022, October). National security strategy. Retrieved, 1 November 2022, from https://www.whitehouse.gov/wp-content/uploads/2022/10/Biden-Harris-Administrations-National-Security-Strategy-10.2022.pdf White House. (2025a, January 20). Putting America first in international environmental agreements. Federal Register. Retrieved, 4 March 2025, from https://www.federalregister.gov/documents/2025/01/30/2025-02010/putting-america-first-in-international-environmental-agreements White House. (2025b, February 5). Withdrawing the United States from and ending funding to certain United Nations organizations and reviewing United States support to all international organizations. Retrieved, 3 March 2025, from https://www.whitehouse.gov/presidential-actions/2025/02/withdrawing-the-united-states-from-and-ending-funding-to-certain-united-nations-organizations-and-reviewing-united-states-support-to-all-international-organizations/ World Bank Group. (various years-a). GDP per capita growth (annual %)–China. The World Bank. Retrieved, 13 March 2025, from https://data.worldbank.org/indicator/NY.GDP.PCAP.KD.ZG?locations=CN World Bank Group. (various years-b). GDP (current US$)–China. Retrieved, 13 March 2025, from https://data.worldbank.org/indicator/NY.GDP.MKTP.CD?locations=CN Wu N. (1993). National identity and party support: The social basis of party competition in Taiwan. Bulletin of the Institute of Ethnology, 74, 33–61. Wu N. (1996). Liberalism and ethnic identity: Searching for the ideological foundation of Taiwanese nationalism. Taiwanese Political Science Review, 1(1), 5–40

Defense & Security
President Donald Trump announces the Golden Dome missile defense system P20250520JB-0081

Trump’s Golden Dome plan threatens to fuel a new arms race

by Julia Cournoyer

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском The plan for an advanced missile defence shield over the US offers no guarantee of success and risks undermining global security. Last week, US President Donald Trump unveiled his $175 billion plan to build the ‘Golden Dome’: a coast-to-coast missile defence shield designed to protect the US against hypersonic, ballistic, and space-based weapons. But far from enhancing US national security, the initiative risks exacerbating global instability and accelerating strategic competition. The concept for the Golden Dome is ambitious. The proposal envisions a multi-layered defence architecture involving hundreds or even thousands of satellites in orbit, equipped with advanced sensors and interceptors, including space-based lasers. These would detect, track, and neutralize incoming missiles and other threats at various stages of flight. In both vision and rhetoric, the plans echo Ronald Reagan’s 1983 Strategic Defence Initiative, often referred to as ‘Star Wars.’ Like the Golden Dome, the SDI proposed a layered defence system that would rely on cutting-edge, and largely untested, technologies to intercept incoming missiles before they could reach US territory. But despite years of investment, the SDI never produced a workable system and was eventually cancelled, exposing the gap between ambition and capability that still exists today. The plan also draws inspiration from Israel’s Iron Dome system. But this comparison is misleading. Israel is much smaller than the US, and its Iron Dome protects the country from short-range, unguided rockets – threats that are limited in number, speed, and direction. Trump’s plan, by contrast, seeks to defend the entire US homeland from far more advanced and numerous threats, including long-range ballistic missiles, hypersonic glide vehicles and orbital delivery systems. The scale, complexity, and technical sophistication required are of a completely different order. Costs – and risks Despite Trump estimating that the system will cost $175 billion and could be built in just three years, the Congressional Budget Office has warned that the space-based components alone could cost as much as $542 billion to deploy and operate over the next 20 years. Fundamental questions remain unanswered: what the system will look like, who will build it, and whether it will function as intended. Investing the necessary resources to develop such an advanced system would require significant trade-offs that could come at the expense of other defence priorities.  The US does not currently have the full spectrum of technology it needs to intercept hypersonic or ballistic missiles in space, which would require interceptors or lasers capable of operating over vast distances with near-instant precision. Pursuing the Golden Dome risks prioritising an expensive and unproven system over more immediate and achievable capabilities, such as improving regional missile defences and cyber resilience to countering emerging threats like drones. The plan also has potentially dangerous strategic consequences. A system that aspires to make the US invulnerable to missile attack would almost certainly be seen by its adversaries as an attempt to undermine the logic of nuclear deterrence. If Washington is perceived to be developing a shield that could one day neutralize a retaliatory nuclear strike, it risks triggering a dangerous global arms race. Beijing and Moscow have already criticized the Golden Dome project as ‘deeply destabilizing’ and could respond with a range of countermeasures, including expanding their offensive arsenals or developing new delivery systems. This arms race could also incentivize the deployment of space-based weapons at a time when space remains dangerously under-regulated. The Golden Dome could therefore undermine global security, making the world a more dangerous place – including for the US. Leverage for diplomacy? Given these risks, the US should instead use the Golden Dome plan as leverage to launch renewed arms control diplomacy. Washington should use the proposal to reinitiate dialogue with other major powers, including Russia and China, on mutual restraint, transparency, and the governance of emerging missile and space-based technologies.  This is especially urgent given the deterioration of existing arms control frameworks. The last major arms control agreement between the US and Russia, the New START Treaty, was suspended by President Vladimir Putin in 2023. It is set to expire in 2026 with no successor in place. Despite China’s growing arsenal, arms control talks between the US and China were also suspended in July 2024 over US arms sales to Taiwan. Meanwhile, rapid advances in missile technology, space systems, and artificial intelligence are outpacing the rules and norms designed to manage them. As geopolitical tensions rise, so does the risk of miscalculation and escalation. The need to revive strategic dialogue is therefore more pressing than ever. While China and Russia may be sceptical of US intentions, the Golden Dome’s space-based elements could create a rare opportunity for renewed arms control dialogue on space security. This might not necessarily focus on warhead reductions, but on more immediate and achievable areas of shared concern.  Space security Space security is one of the most promising and necessary avenues for engagement. As nuclear-armed powers become increasingly reliant on space-based systems for both military and civilian purposes (from early warning systems and communications to navigation and surveillance), the risks of miscalculation or unintended escalation in orbit are growing. A pragmatic and urgently needed step would be to launch dialogue on the norms that should govern behaviour in space, including avoiding close approaches to satellites, limiting the deployment of certain space-based systems, or improving transparency. Even modest measures, such as agreeing to share notifications of satellite launches or discussing dual-use capabilities, could help to build trust and reduce the likelihood of conflict in orbit. By focusing on space, where interests overlap and mutual vulnerabilities are clear, the US could help to re-establish the foundations for wider future strategic dialogue.  Avoiding past mistakes In the 1980s, Reagan’s SDI consumed vast resources, heightened international tensions, and failed to deliver a functioning defence system. It also contributed to an arms race that left the world more divided, not more secure. The Golden Dome risks repeating those same mistakes, but with more players, faster technologies, and fewer guardrails in place. At a time when arms control frameworks are crumbling and global tensions are rising, the announcement of the Golden Dome should be seen as a strategic opportunity to initiate renewed discussions on space security. Framing the proposal as a starting point for dialogue, rather than a signal of unilateral ambition, could help to stabilize a dangerously volatile moment. Otherwise, the project risks pushing the world one step further towards a more contested, militarized, and insecure future.

Defense & Security
Brussels, Belgium – November 06 2023: new pack of economic EU sanctions against Russia, vector cartoon illustration on white

Who supports EU sanctions against Russia’s war in Ukraine? The role of the defence of European values and other socioeconomic factors

by Alessandro Indelicato , Juan Carlos Martína

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском Introduction On 24 February 2022, Russia launched a full-scale invasion of Ukraine, following the military actions that began with the annexation of Crimea in 2014. The conflict is having devastating consequences, including widespread death and displacement, destruction of infrastructure, and a global energy crisis, also heightening geopolitical tensions (Kurapov et al., Citation2023). Pertiwi (Citation2024) contended that since the crisis in Eastern Ukraine and Russia’s annexation of Crimea in 2014, the European Union (EU) has adopted sanctions as the key policy response targeting Russia’s aggressive behaviour. These restrictive measures were applied by the EU in multiple rounds and packages and gradually became the cornerstone of the EU’s policy towards Russia. (p. 61) There is extant literature studying the direct consequences of the war, such as humanitarian crises, economic impacts and geopolitical instability. Numerous countries have experienced food shortages and rising prices due to disruptions in supply chains, worsened by the crisis in Ukraine and the closure of airspace (Hellegers, Citation2022). Concurrently, the war has caused an unprecedentedly volatile energy market, as many European countries were obliged to seek alternative energy sources to Russian imports, demanding more oil and natural gas from alternative suppliers (Liadze et al., Citation2022). The invasion has also fuelled inflation across the EU, not only affecting energy, which is essential in all the sectors of the economy but also other sectors like food, for example, as Ukraine is a major global grain producer (Ozili, Citation2024). The added value and main contribution of this paper is based on the use of grounded social scientific methods like the Fuzzy Hybrid TOPSIS and the Ordered Probit, to analyse the EU citizens’ support of the sanctions against Russia, providing more nuanced insights on what factors are the most important to be in favour and against the sanctions. Thus, in particular, our study contributes to filling one of the important gaps mentioned by Pertiwi (Citation2024) in the analysis of the literature on the EU’s approach to sanctions on Russia. Concretely, our study fills in part the fifth gap in the analysis of causal mechanisms that examine the sanctions, including relevant actors like the EU citizens. Thus, we first provide an in-depth analysis of European citizens’ views on EU sanctions to weaken Russia and support Ukraine. And then, we analyse the main factors that affect the EU citizens’ support of the sanctions taken by the EU against Russia and in favour of Ukraine. The study includes data from 26,461 respondents across the 27 EU Member States, collected through the 98th Eurobarometer survey (Winter 2022–2023), which examined the EU’s response to the war in Ukraine. The paper is organised as follows: Section 2 provides a brief overview of the literature review. Section 3 presents the dataset used, and the methodological approach. In Section 5, the results are presented, followed by Section 5, which offers a thorough discussion of the findings. Finally, Section 6 concludes the paper by summarising the main conclusions drawn from the study, identifying implications, limitations of the study, and potential directions for future research. Literature reviewAttitudes towards EU’s sanctions against Russia war in Ukraine Public sentiment for the EU is a complex phenomenon to study and needs to be approached from different angles, including identity, governance, security and the economy. How the public perceives the EU as a guardian of democratic values and good governance directly influences support for its policies, including sanctions on Russia. Boomgaarden et al. (Citation2011) argue that if the people believe that the EU is going to safeguard democratic principles, then they will identify sanctions as a proper means of safeguarding such principles. However, if there is a lack of trust in the EU to defend such values, there will be little support for such sanctions. The purpose of European identity is primarily to determine people’s views on the EU’s actions. Kende et al. (Citation2018) believe that European identity can have a profound impact on solidarity with common EU policies, such as sanctions. This would imply that the framing of a common European identity can become the most important factor in eliciting public consent for EU programmes, especially in the midst of geopolitical crises. Thus, public opinion on sanctions is also based on perceptions of the EU’s ability to act in the interests of citizens. According to McLean and Roblyer (Citation2016), if citizens perceive the EU as doing the best it can for its citizens, particularly in terms of economic stability and governance, they are more likely to support sanctions against Russia. However, if the EU is perceived as wasteful, or its policies are perceived as economically harmful, then the potential for support for sanctions will be low. This explains the need to ensure that EU action is consistent with shared perceptions of political effectiveness and economic benefit. The imposition of economic sanctions is one of the highest prioritised tools in the modern world, especially against threats to stability and security. The EU sanctions on Russia, especially after the annexation of Crimea and the invasion of Ukraine, have stimulated an immensely wide public discussion (Karlović et al., Citation2021). An important question is: What is the role of perceived security threats in shaping public opinion about these sanctions? It has been made known through investigation that subjective security risk strongly predicts public opinion regarding EU sanctions against Russia. Frye (Citation2019) argues that sanctions are not always supported but vary depending on how people view security threats. Public support is higher when sanctions are framed as protection against an external threat. When sanctions are perceived as a threat to national or economic security, they can generate opposition. The EU’s collective response to the Russia–Ukraine conflict also shows that public opinion on sanctions is shaped by both security interests and normative expectations of justice and self-determination (Bosse, Citation2024). This mutual influence can lead to mixed public responses, with some seeing sanctions as an ethical necessity, while others withdraw their support due to perceived economic and national security risks. The way EU sanctions are proposed and implemented also influences public opinion. According to Sjursen (Citation2015), citizens will be more supportive of sanctions if they see EU institutions as representative and transparent. Conversely, an image of bureaucratic distance or lack of public participation in decision-making can undermine trust and lead to opposition. Thus, in line with this background, we pose our first research question as follows: (1) How do European values and security threats influence the intensity of public support for EU sanctions against Russia?Socioeconomic factors in shaping attitudes towards EU sanctions Support for economic sanctions against Russia is widespread among the EU, varying according to socioeconomic status, demographic characteristics and political engagement. As Frye (Citation2017) has noted, economic prosperity is a key predictor of support for sanctions. Those who are financially ‘safe’ are more likely to support EU-imposed sanctions, as they are less directly affected by the economic burden. Previous studies have shown that those in more affluent income groups or with stable household finances are more likely to support foreign policy actions, such as sanctions, that represent broader European values, even if they are economically costly (Alexandrescu, Citation2024). This is consistent with the findings of Lepeu (Citation2025), which recognises that citizens who rate their own economic situation as ‘very good’ are far more likely to support sanctions than those facing financial hardship. On the other hand, citizens facing economic hardship are less likely to be sanction-supportive if they believe that sanctions will negatively impact inflation, increase unemployment or suppress national economic stability. Onderco (Citation2017) found that economic hardship is associated with higher scepticism towards foreign policy decisions that lack tangible personal benefits. This means that the economic price of sanctions is likely to disproportionately affect support among lower-income individuals. Generational differences also play a role in shaping public opinion on sanctions. Older individuals (over 55 years) are more supportive of EU sanctions, as they have a historical perspective on European security and are more politically engaged (Alexandrescu, Citation2024). On the other hand, younger people (15–34 years) have weaker support, possibly because they have different priorities, such as financial stability and employment, which could be considered more pressing than geopolitical concerns (Onderco, Citation2017). Alexandrescu (Citation2024) also suggests a new generational divide in attitudes towards coercive diplomacy, suggesting that efforts to build popular support for sanctions must consider young Europeans’ concerns and values about economic consequences and political transparency. Political interest is a second important predictor of support for EU sanctions. Politically knowledgeable and engaged citizens tend to be more supportive of EU foreign policy decisions, including sanctions (Alexandrescu, Citation2024). Thus, there is political ideology duality: left and centre-left voters support sanctions if they are anchored in a broader vision of upholding international law and human rights, while centre-right and populist voters are likely to be more sceptical if sanctions are perceived as infringing on national sovereignty (Onderco, Citation2017). As in the literature, the likelihood of being a strong supporter of EU sanctions depends on several socioeconomic and demographic factors, our second research question builds on the following: (2) Do socioeconomic characteristics influence the likelihood of being a strong supporter of EU sanctions against Russia?Dataset and methodology The dataset of the study is based on the Standard Eurobarometer 98.2 (EB98) survey Winter 2022–2023 which was conducted from 12 January to 6 February 2023 in 39 countries or territories. In the study, we only use the dataset from the 27 Member States of the EU, without considering the data from the other twelve additional countries included. The dataset was collected about a year after the start of the Russian invasion of Ukraine, covering the following five topic areas identified by the European Commission (Citation2024): (1) The EU’s response to the invasion of Ukraine; (2) the actions taken as a unified EU response to the invasion; (3) the consequences of the war in Ukraine; (4) the European security threat; and (5) the future EU actions in the wake of the war., and aims to analyse the solidarity of European citizens with the Ukrainian people. The sample size for each country was around 1000 respondents except for Malta with 503, making a total of 26,461 respondents. The endogenous variable of the study is obtained by applying the Fuzzy Hybrid TOPSIS approach to the items of the survey included to measure the degree of support of the respondents towards the measures taken by the EU in response to the Russian invasion of Ukraine. The following five items were included in the analysis: (1) financing the purchase and supply of military equipment to Ukraine; (2) imposing economic sanctions on the Russian government, companies and individuals; (3) providing financial support to Ukraine; (4) providing humanitarian support to the people affected by the war; and (5) welcoming into the EU people fleeing the war. The question introduction was the same for all the items: The EU has taken a series of actions as a response to Russia’s invasion of Ukraine. To what extent do you agree or disagree with each of these actions taken? The responses to the question for each item were given using a complete 5-point Likert scale, where: 1 = totally agree; 2 = tend to agree; 3 = do not know; 4 = tend to disagree; and 5 = totally disagree. The scale was reversed to enhance interpretability, ensuring that higher values are aligned with those citizens who expressed higher support for the measures taken by the EU. The analysis of the variables affecting the citizens’ support was based on the selection of 14 exogenous variables, including age, gender, political interest, perception of the situation in the country, employment personal perception, financial household perception, the labour market perception of the country, the provision of public services perception, the overall image of the EU, the perception of the threat posed by the Russian war in Ukraine to security in the EU and the country itself, the personal perception that standing against the Russian invasion of Ukraine, the EU is defending European values, and the political orientation. More information about the exogenous variables can be found in Table A1 in the appendix. The Ordered Probit model will provide interesting and nuanced results of whether some exogenous variables affect the support of the EU sanctions taken by the EU in response to the Russian invasion. For example, for each of the variables included in the analysis, it will be possible to analyse to what extent some of the categories support more or less the sanctions. Similarly, it will be possible to determine if some of the variables have a significant effect on the level of support. Methodology Opinion surveys are affected by the subjective judgments of respondents, leading to potential inaccuracy in interpreting response categories (Disegna et al., Citation2018). For instance, ‘totally agree’ for one respondent could be equivalent to simply ‘tend to agree’ for another. For this reason, Fuzzy Set Logic methods are becoming very popular in social sciences to manage the uncertainty associated with survey responses effectively (Cantillo et al., Citation2021; Indelicato & Martín, Citation2024). The study uses the Fuzzy Hybrid TOPSIS Approach to calculate the endogenous variable that measures the support (sup) of the respondents towards the sanctions taken by the EU against Russia. The method is grounded in the fuzzy set theory proposed by Zadeh (Citation1965), which was introduced for handling the inherent uncertainty and vagueness of information provided by answers to social surveys (Carlsson & Fullér, Citation2001; Disegna et al., Citation2018; Mamdani & Assilian, Citation1999). There are multiple fuzzy set representations that can be used to associate the categories of the answers given in the survey (Nguyen et al., Citation2005). In the study, we use the Triangular Fuzzy Numbers (TFNs), which are the most used fuzzy sets (Anand & Bharatraj, Citation2017; Wang, Citation2017). The final representation of the answers from the dataset is as follows: (1) totally disagree is represented by (0, 0, 30); (2) tend to disagree by (20, 30, 40); (3) do not know by (30, 50, 70); (4) tend to agree by (60, 70, 80); and (5) totally agree by (70, 100, 100). The hybrid nature of the method is based on the application of the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), which calculates the synthetic indicator (Hwang & Yoon, Citation1981). We omit the mathematical formulation of the method for simplicity and ease of exposition. Interested readers can consult many existing papers, such as (Cantillo et al., Citation2023; Indelicato et al., Citation2023; Martín et al., Citation2020; Martín & Indelicato, Citation2023). We will use sup which provides relative support for the sanctions on Russia taken by the EU after invading Ukraine, as the dependent variable for the econometric model. The variable will be categorised into five quintiles according to the ranking of the indicator in order to use an ordered probit model. The marginal effects of the results will be used to analyse the main determinants that explain the highest support of EU citizens. In the study, we use the Daly normalisation for all the categories that act as exogenous variables in the model. Thus, it is possible to determine the marginal effects of each category with respect to the sample-weighted average. We omit the discussion of the technicalities of the model and exogenous variables normalisation. Interested readers can consult Daly et al. (Citation2016), Greene and Hensher (Citation2010), Hensher et al. (Citation2015) and Martin and Roman (Citation2021). Results Figure 1 shows the kernel density of the exogenous variable that measures the support of EU individuals for the sanctions against Russia taken by the EU for the whole sample (panel a) and for those who totally agree and totally disagree with the EU imposing the sanctions to defend European values (panel b). The results indicate that a small number of respondents do not support the sanctions imposed by the EU at all, with 170 citizens giving a score of 1 to all survey items included in the scale. Conversely, a significant portion of the population holds a more neutral position, as shown by responses falling in the range of 0.3–0.6. Additionally, a substantial number of citizens – specifically, 6430 – express their strong support for the sanctions by responding with a score of 5 to all items.  Figure 1. Support kernel density. Panel (b) of the figure clearly distinguishes between the two categories of respondents. It shows that those who strongly support the defence of European values are more in favour of the sanctions compared to those who strongly oppose them. Similar figure patterns are obtained for the categories of those who have a positive or negative image of the EU, and for those who think that the Russian invasion of Ukraine is seen as an important threat to the security of the EU. Nevertheless, this will be further discussed with the results of the ordered probit model. Table 1 shows the main drivers to support or not the sanctions taken by the EU against Russia. The table is obtained from the marginal effects obtained from the ordered probit model, which is in the fifth quintile of the support distribution, and refers to the citizen group of the strong supporters (Table A3, in the appendix). It can be seen that the main drivers to support the sanctions are totally agreeing that by standing against the Russian invasion, the EU is defending European values, having a very good or rather good image of the EU, totally agreeing that the EU security is under threat with the Russian invasion, and to have a very good financial situation in the household. All the coefficients are significant at 999 per thousand. The results of the ordered probit model, as well as the complete table of the marginal effects, can be consulted in the appendix. Table A2 shows that all the exogenous variables affect the support level except the area in which the respondent resides, so the support is transversal to whether the European lives in a rural, middle town or large town. It is also interesting to observe that all the threshold parameters of the ordered probit model result significant, i.e. the five different quintiles of the distribution can be allocated without the need to collapse some of the categories used in the estimation.  Table 1. Main drivers to be or not a strong supporter of the EU sanctions. Interestingly, the main drivers to be in the population segment of those who do not strongly support the EU sanctions are the opposite categories of supporting the sanctions: totally disagreeing or tending to disagree with the defence of European values, totally disagreeing or tending to disagree with the fact that the invasion of Ukraine is a security threat to the EU and having a very bad image of the EU. The coefficients of Table 1 have been extracted from Table A3, and need to be interpreted as follows: the coefficients are the marginal effects of the category to be or not a strong supporter of the EU sanctions. For example, the coefficient of 0.105 for individuals who totally agree that the EU is defending European values by standing against the Russian invasion of Ukraine indicates that this group has a 10.5 per cent higher likelihood of being strong supporters of EU sanctions compared to the average citizen in the overall sample. In a similar manner, the coefficient of −0.225 for the category of total disagreement indicates a 22.5 per cent lower probability of being a strong supporter. Other interesting results that can be seen in the complete marginal effects table (Table A3, in the appendix) are that the type of urbanisation where the respondent lives, namely rural village, small and mid-size town or large town, is the only variable of the twelve under analysis which does not have any significant effect on being a strong supporter of the sanctions. For the rest of the variables, there is always a category with more odds of being or not in the category of strong supporters. It is interesting to note that the younger generations (between 15 and 24 and between 25 and 34) are less likely to be in the category of strong supporters than those over 55, who are significantly more likely to be in this category. Similarly, those who have a strong political interest, have a good personal job situation, think that the economic situation of their country is rather good, are leftist or left-centre, think that the employment situation of the country is rather good, are males, or have a rather good financial situation have a higher probability of being in the category of strong supporters. Conclusions In a recent speech by Jens Stoltenberg, former Secretary General of NATO, the following assessment was made: In just a few weeks, NATO leaders will meet in Madrid. We will make important decisions. To continue to strengthen and adapt our Alliance to a new security reality and protect our people and our values. I look forward to the day when we can welcome both Finland and Sweden into our Alliance. This will make Finland and Sweden safer. NATO stronger. And the whole Euro-Atlantic area more secure. (NATO, Citation2022) Although NATO’s strategic decision affects the entire geopolitical landscape, public perceptions of EU sanctions need to be addressed through a more nuanced, evidence-based approach. Public opinion on sanctions is driven not only by security concerns but also by economic and political factors that underpin individual belief systems. To measure the determinants of support for such policies, this study applies both the fuzzy hybrid approach and the ordered probit model. The first method calculates the endogenous variable that measures the level of support of each respondent. The second method is used to find the main factors of a set of 14 exogenous variables or covariates that affect the support. Our results reveal that there are four important drivers to be a strong supporter of the sanctions taken by the EU against Russia after the invasion of Ukraine in early 2022: (1) totally agreeing that by standing against the Russian invasion of Ukraine, the EU is defending European values, (2) having a very good overall EU image, (3) totally agreeing that Russia’s invasion of Ukraine is a threat to the security of the EU, and (4) having a very good household financial situation. Other factors, such as age, gender, or political orientation, among others, are less determinant in explaining the strong support category. The dataset for the study was obtained from the 98th Eurobarometer, covering winter 2022–2023, providing a solid foundation for the objectives pursued in the study. Our results imply that, at least in the salient category of being a strong supporter of the EU sanctions, European Parliamentarians and the political parties involved should promote a triad: the defence of European values (Anghel & Jones, Citation2023), a more integrated security defence system that will permit the EU to be more independent from NATO and US (Del Sarto Citation2016; Howorth Citation2018), and a solid campaign of improving the EU image, highlighting the benefits of being in the union (Elmatzoglou, Citation2020). The European values of human rights and dignity, as well as the principles of living in liberal democracies, should not be undermined by misinformation campaigns from autocratic regimes. The invasion of Ukraine constitutes the biggest security threat in Europe since the end of the Cold War, fostering a wave of fear and real politics about the necessity of increasing the military budget. Europeans have seen more closely how the lives of human beings are worth almost nothing when their homes are bombed, and they have to leave with just the bare minimum, stopping their daily lives and becoming refugees in countries that may not welcome them with open arms. There is a need for effective communication campaigns that change the focus from generic issues such as ‘Europeanness’ fostering a common national identity or sense of belonging to a pragmatic branding strategy that achieves a power actor in the new turbulent geopolitical battlefield. Recent developments, in the light of newly elected President Donald Trump’s views on NATO and US foreign aid, have added uncertainty to the EU’s strategic calculus on sanctions. Trump’s concerns about NATO’s burden-sharing and his ambivalent stance on continued US military aid to Ukraine have set off alarm bells among EU policymakers and underscored the need for a European security policy that is less dependent on US leadership (Sorgi, Citation2025). Thus, it is the time for a more than-less European Union mentality that decreases Euroscepticism, a time to strengthen public support for the EU. This shift requires an emphasis on the tangible benefits that EU membership brings to member states, including economic stability, enhanced security, and the promotion of shared values like democracy and human rights. By fostering greater awareness and understanding of the EU’s role in addressing cross-border challenges, citizens can better appreciate the advantages of unity over division. Engaging with local communities, encouraging open dialogues, and actively involving citizens in EU decision-making processes can further bridge the gap between the EU and its citizens, reinforcing a sense of belonging and shared purpose. This study has some limitations that can be addressed in future studies. First, the dataset is a point-in-time measure of public opinion, surveyed in the winter of 2022–2023. Due to the dynamic nature of the geopolitical environment, longitudinal studies are needed to examine how public support for EU sanctions may change over time in response to political, economic and military events. Second, other external factors can also be examined to gain a better picture of how other factors could shape people’s opinions. These range from cultural equivalence with Ukraine to geographical proximity to the war zone, exposure to social media narratives, and interaction with Ukrainian refugees. The role of media frames and disinformation campaigns in determining views on EU sanctions is another area that would require more work. Third, latent variables such as societal resilience, institutional trust, geopolitical affinity, and adherence to European values could provide a better understanding of the reasons for support or opposition to EU sanctions. Such variables could also explain the differences in public opinion between EU member states and between different demographic groups. Furthermore, as previous studies on public support (Onderco et al., Citation2023) have also shown, a comparative analysis with previous surveys, for example, in 2008 (Russia-Georgia war), 2014 (annexation of Crimea and Donbas war) with the full invasion of Ukraine in 2022–2023, could also be very useful. Although not directly compared in the current study, future research would benefit from a historical analysis component to explore the continuities and shifts in public opinion during these major geopolitical events and how they change in different EU countries. This would provide a better insight into how threat perceptions, economic concerns and EU identity evolve in response to Russian aggression and EU foreign policy initiatives. Supplemental Material Supplemental data for this article can be accessed online at https://doi.org/10.1080/23745118.2025.2476484. Additional informationFunding Dr Alessandro Indelicato research is funded by the research fellowship “Catalina Ruiz,” provided by the Consejo de Economía, Conocimiento y Empleo of the Gobierno de Canarias, the Agencia Canaria De Investigación Innovación Y Sociedad De La Información (ACIISI), and Fondo Social Europeo of the EU, through the Universidad de Las Palmas de Gran Canaria (Spain). Martín, J. C., & Indelicato, A. (2025). Who supports EU sanctions against Russia’s war in Ukraine? The role of the defence of European values and other socioeconomic factors. European Politics and Society, 1–15. https://doi.org/10.1080/23745118.2025.2476484 References 1. Alexandrescu, M. (2024). Beyond geopolitics: Unraveling public support for economic sanctions in the B9 states at the beginning of the Ukrainian War (2022). SAGE Open, 14(3), 1–17. https://doi.org/10.1177/215824402412683192. Anand, M. C. J., & Bharatraj, J. (2017, March 27). Theory of triangular fuzzy number. Proceedings of NCATM (p. 80).3. Anghel, V., & Jones, E. (2023). Is Europe really forged through crisis? Pandemic EU and the Russia–Ukraine war. Journal of European Public Policy, 30(4), 766–786. https://doi.org/10.1080/13501763.2022.21408204. Bøggild, T., Göbel, S., Lutscher, P., & Nyrup, J. (2024). Standing with Ukraine? How citizens trade off self-interest and principles in supporting war-torn international partners. Research & Politics, 11(2), 20531680241252399. https://doi.org/10.1177/205316802412523995. Boomgaarden, H. G., Schuck, A. R., Elenbaas, M., & de Vreese, C. H. (2011). Mapping EU attitudes: Conceptual and empirical dimensions of Euroscepticism and EU support. European Union Politics, 12(2), 241–266. https://doi.org/10.1177/14651165103954116. Börzel, T. A. (2023). European integration and the war in Ukraine: Just another crisis? JCMS: Journal of Common Market Studies, 61(1), 14–30. https://doi.org/10.1111/jcms.135507. Bosse, G. (2024). The EU’s response to the Russian invasion of Ukraine: Invoking norms and values in times of fundamental rupture. JCMS: Journal of Common Market Studies, 62, 1222–1238. https://doi.org/10.1111/jcms.135698. Brubaker, R., & Cooper, F. (2000). Beyond “identity”. Theory and Society, 29(1), 1–47. https://doi.org/10.1023/A:10070687144689. Bruno, M., & Fazio, G. (2023). Italy’s foreign policy in times of crisis: Public opinion and party dynamics in response to the Ukraine war. European Politics and Society, 24(2), 245–265.10. Cantillo, J., Martín, J. C., & Román, C. (2021). Determinants of fishery and aquaculture products consumption at home in the EU28. Food Quality and Preference, 88, 1–14. https://doi.org/10.1016/j.foodqual.2020.10408511. Cantillo, J., Martín, J. C., & Román, C. (2023). Understanding consumers’ perceptions of aquaculture and its products in Gran Canaria Island: Does the influence of positive or negative wording matter? Aquaculture, 562, 738754. https://doi.org/10.1016/j.aquaculture.2022.73875412. Carlsson, C., & Fullér, R. (2001). Fuzzy reasoning in decision making and optimization (Vol. 82). Springer.13. Daly, A., Dekker, T., & Hess, S. (2016). Dummy coding vs effects coding for categorical variables: Clarifications and extensions. Journal of Choice Modelling, 21, 36–41. https://doi.org/10.1016/j.jocm.2016.09.00514. Del Sarto, R. A. (2016). Normative empire Europe: The European Union, its borderlands, and the ‘Arab Spring’. JCMS: Journal of Common Market Studies, 54(2), 215–232. https://doi.org/10.1111/jcms.1228215. Disegna, M., D’Urso, P., & Massari, R. (2018). Analysing cluster evolution using repeated cross-sectional ordinal data. Tourism Management, 69, 524–536. https://doi.org/10.1016/j.tourman.2018.06.02816. Elmatzoglou, I. (2020). EU branding. Efforts to improve the EU image. Place Branding and Public Diplomacy, 16(4), 326–335. https://doi.org/10.1057/s41254-020-00180-517. European Commission. (2022). EU’s response to the war in Ukraine. Issue February. European Commission. https://europa.eu/eurobarometer/surveys/detail/2772(open in a new window)18. European Commission. (2024). EDIS: Our common defence industrial strategy. Accessed January 15, 2025, from https://defence-industry-space.ec.europa.eu/eu-defence-industry/edis-our-common-defence-industrial-strategy_en(open in a new window)19. Frye, T. (2017). Property Rights and Property Wrongs: How Power, Institutions, and Norms Shape Economic Conflict in Russia. Cambridge University Press.20. Frye, T. (2019). Economic sanctions and public opinion: Survey experiments from Russia. Comparative Political Studies, 52(7), 967–994. https://doi.org/10.1177/001041401880653021. Gorg, H., Jacobs, A., & Meuchelböck, S. (2023). Who is to suffer? Quantifying the impact of sanctions on German firms. IZA Discussion Paper No. 16146. https://ssrn.com/abstract=4456331(open in a new window)22. Greene, W. H., & Hensher, D. A. (2010). Modeling ordered choices: A primer. Cambridge University Press. https://doi.org/10.1017/CBO978051184506223. Hellegers, P. (2022). Food security vulnerability due to trade dependencies on Russia and Ukraine. Food Security, 14(6), 1503–1510. https://doi.org/10.1007/s12571-022-01306-824. Hensher, D. A., Rose, J. R., & Greene, W. H. (2015). Applied choice analysis. Cambridge University Press.25. Howorth, J. (2018). Strategic autonomy and EU-NATO cooperation: Threat or opportunity for transatlantic defence relations? Journal of European Integration, 40(5), 523–537. https://doi.org/10.1080/07036337.2018.151226826. Hwang, C.-L., & Yoon, K. (1981). Methods for multiple attribute decision making. In C.-L. Hwang & K. Yoon (Eds.), Multiple attribute decision making (pp. 58–191). Springer.27. Indelicato, A., & Martín, J. C. (2024). The effects of three facets of national identity and other socioeconomic traits on attitudes towards immigrants. Journal of International Migration and Integration, 25(2), 645–672. https://doi.org/10.1007/s12134-023-01100-128. Indelicato, A., Martín, J. C., & Scuderi, R. (2023). A comparison of attitudes towards immigrants from the perspective of the political party vote. Heliyon, 9(3), e14089. https://doi.org/10.1016/j.heliyon.2023.e1408929. Isernia, P., Martini, S., & Cozzi-Fucile, C. (2024). Shaping public attitudes towards EU sanctions: The role of political narratives in France, Germany, and Italy. Journal of European Public Policy, 31(1), 79–102. https://doi.org/10.1080/13501763.2023.222616830. Karlović, A., Čepo, D., & Biedenkopf, K. (2021). Politicisation of the European foreign, security, and defence cooperation: The case of the EU’s Russian sanctions. European Security, 30(3), 344–366. https://doi.org/10.1080/09662839.2021.196447431. Kende, A., Hadarics, M., & Szabó, Z. P. (2018). National and European identities as predictors of attitudes toward economic and social policies. European Journal of Social Psychology, 48(5), 615–629. https://doi.org/10.1002/ejsp.235732. Koval, N., & Vachudova, M. A. (2024). European Union enlargement and geopolitical power in the face of war. JCMS: Journal of Common Market Studies, 1–12. https://doi.org/10.1111/jcms.1367733. Kurapov, A., Pavlenko, V., Drozdov, A., Bezliudna, V., Reznik, A., & Isralowitz, R. (2023). Toward an understanding of the Russian-Ukrainian war impact on university students and personnel. Journal of Loss and Trauma, 28(2), 167–174. https://doi.org/10.1080/15325024.2022.208483834. Lepeu, J. (2025). Ukraine, the de-targetization of EU sanctions, and the rise of the European commission as architect of EU foreign policy. International Politics, 1–14.35. Liadze, I., Macchiarelli, C., Mortimer-Lee, P., & Juanino, P. S. (2022). The economic costs of the Russia-Ukraine conflict.36. Makarychev, A., & Terry, G. (2020). An estranged ‘marriage of convenience’: Salvini, Putin, and the intricacies of Italian-Russian relations. Contemporary Italian Politics, 12(1), 23–42. https://doi.org/10.1080/23248823.2019.170692637. Mamdani, E. H., & Assilian, S. (1999). An experiment in linguistic synthesis with a fuzzy logic controller. International Journal of Human-Computer Studies, 51(2), 135–147. https://doi.org/10.1006/ijhc.1973.030338. Martin, J. C., & Roman, C. (2021). The effects of COVID-19 on EU federalism. Eastern Journal of European Studies, 12(Special issue), 126–148. https://doi.org/10.47743/ejes-2021-SI0639. Martín, J. C., & Indelicato, A. (2023). A fuzzy-hybrid analysis of citizens’ perception toward immigrants in Europe. Quality & Quantity, 57(2), 1101–1124. https://doi.org/10.1007/s11135-022-01401-040. Martín, J. C., Moreira, P., & Román, C. (2020). A hybrid-fuzzy segmentation analysis of residents’ perception towards tourism in Gran Canaria. Tourism Economics, 26(7), 1282–1304. https://doi.org/10.1177/135481661987346341. McLean, E., & Roblyer, D. (2016). Public support for economic sanctions: An experimental analysis. Foreign Policy Analysis, 13(1), 233–254. https://doi.org/10.1093/FPA/ORW01442. NATO. (2022). Speech by NATO Secretary General Jens Stoltenberg at the kultaranta talks in Finland. Retrieved January 10, 2025, from https://www(open in a new window). nato.int/cps/en/natohq/opinions_196300.htm43. Nguyen, H. T., Nguyen, H. T., & Walker, E. A. (2005). A first course in fuzzy logic. Chapman and Hall/CRC, Taylor & Francis Group. https://doi.org/10.1201/978142005710244. Onderco, M. (2017). Public support for coercive diplomacy: Exploring public opinion data from ten European countries. European Journal of Political Research, 56(2), 401–418. https://doi.org/10.1111/1475-6765.1218345. Onderco, M., Smetana, M. (2023). Hawks in the making? European public views on nuclear weapons post-Ukraine. Global Policy, 14(2), 305–317.46. Ozili, P. K. (2024). Global economic consequences of Russian invasion of Ukraine. In P. Pietrzak (Ed.), Dealing with regional conflicts of global importance (pp. 195–223). IGI Global.47. Pertiwi, L. A. (2024). The EU’s approach to sanctions on Russia: A critical analysis of the existing literature. Central European Journal of International and Security Studies, 18(3), 61–86. https://doi.org/10.51870/NOEX447548. Pospieszna, P., Onderco, M., & van der Veer, R. (2024). Comparing public attitudes towards internal and external EU sanctions: The role of populism, trust and Euroscepticism. East European Politics, 40(2), 345–366. https://doi.org/10.1080/21599165.2023.228908949. Raik, K., Blockmans, S., Dandashly, A., Noutcheva, G., Osypchuk, A., & Suslov, A. (2023). Tackling the constraints on EU foreign policy towards Ukraine: From strategic denial to geopolitical awakening. Instituto Affari Internazionali. https://cris(open in a new window). maastrichtuniversity.nl/ws/portalfiles/portal/137103994/joint_rp_20.pdf50. Sjursen, H. (2015). Normative theory: An untapped resource in the study of European foreign policy. In K. E. Jrgensen, A. K. Aarstad, E. Drieskens, K. Laatikainen, B. Tonra (Eds.), The Sage handbook of European foreign policy (Vol. 2, pp. 197–214). SAGE Publications. https://doi.org/10.4135/978147391519051. Sorgi, G. (2025, February 25). EU eyes €200B secret weapon as Trump dominates Ukraine peace talks. POLITICO. https://www.politico.eu/article/eu-ukraine-peace-talks-donald-trump-russia-war-200-billion-kremlin-us-politics-g20/(open in a new window)52. Staunton, E. (2022). A useful failure: Macron’s overture to Russia. Survival, 64(2), 17–24. https://doi.org/10.1080/00396338.2022.205581953. Tchantouridzé, L. (2022). The Aftermath of the 2008 Russo-Georgian War: Appeasement of Russia and the War in Ukraine. Journal of Peace and War Studies, 77.54. Vignoli, V., & Coticchia, F. (2024). Italian political parties and the war in Ukraine: A strategic dilemma between NATO commitments and domestic constraints. Italian Journal of International Affairs, 59(1), 67–89.55. Wang, Q. (2017). Research on the assessment of psycholinguistic teaching effect with triangular fuzzy information. Journal of Intelligent & Fuzzy Systems, 32(1), 1139–1146. https://doi.org/10.3233/JIFS-1653156. Zadeh, L. A. (1965). Information and control. Fuzzy Sets, 8(3), 338–353.57. Zavershinskaia, A., & Spera, M. (2024). Divided Europe: How France, Germany, and Italy shape the EU’s response to the war in Ukraine. European Foreign Affairs Review, 29(2), 231–256.

Defense & Security
Gaza on map. Israel an Palestine on geopolitical Map. Gaza strip and West Bank. War conflict.

Netanyahu accelerates plans for total occupation of a starving Gaza

by Redacción El Salto

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском The Israeli army seeks to mobilize 30,000 reservists for a new expansion of its offensive on Gaza. UN-affiliated organizations warn of famine and disease in an enclave where clean drinking water is scarce. The Israeli security cabinet has approved a plan to intensify the operation in Gaza, which includes capturing or seizing additional areas across the Palestinian coastal territory and expanding the area controlled by the IDF. Government members, such as Finance Minister Bezalel Smotrich, are already using the term “occupation” to clarify the plans for Gaza. Although Prime Minister Benjamin Netanyahu has not specified which parts of the territory are involved in the new escalation, anonymous military sources have claimed that the goal is to occupy the entire Gaza Strip. The idea put forth by the Zionist regime, in any case, is to seize the territory and not return it in the future. Hamas has rejected this plan and continues to pursue “a comprehensive agreement that guarantees the safety and protection of our people,” according to one of its senior officials. The announcement includes the destruction of “all infrastructure above and underground,” according to Israeli Chief of General Staff Eyal Zamir. The meeting followed IDF orders to mobilize 30,000 reservists last Saturday. Israel is thereby increasing pressure on Gaza during the same month that U.S. President Donald Trump is expected to visit Saudi Arabia, Qatar, and the UAE, where he will present his colonization plans aligned with the wishes of the Tel Aviv regime. The plan also entails a new forced displacement of hundreds of thousands of Palestinians to the south of Gaza, expected to last for months. The government of Netanyahu — who is considered a suspected war criminal by the International Court of Justice (ICJ) — faces internal resistance from the Hostage and Missing Families Forum, which has protested what they see as prioritizing territorial conquest over the return of prisoners captured by Hamas on October 7. Fifty-nine people remain held by the Gaza government after Israel unilaterally broke the ceasefire on March 18. The Forum mentioned before, criticized the Gaza occupation plans, referring to them as the “Smotrich-Netanyahu Plan for the Sacrifice of Hostages,” according to a public statement. The main debate within the security cabinet focused on whether to open routes for humanitarian aid — routes that have been closed since early March, two weeks before the ceasefire collapsed. According to Israeli newspaper Haaretz, Itamar Ben Gvir — also subject to ICJ arrest warrants — argued for keeping all aid routes closed: “I don’t understand why we have to give them anything; they have enough food there. We should bomb Hamas’s food reserves,” the outlet quoted. The Chief of Staff called the idea “dangerous.” According to the same leaks, Ben Gvir also proposed “bombing food warehouses and generators.” The International Criminal Court has reminded that blocking humanitarian aid may constitute a war crime. The Israeli government has leaked to the press that under the new escalation, humanitarian aid would be allowed in only through “international organizations and private security contractors.” On Sunday, May 4, the Country Humanitarian Team (CHT), under the UN Office for the Coordination of Humanitarian Affairs (OCHA), reported that for nine weeks Israeli authorities had blocked all supplies from entering Gaza: “Bakeries and community kitchens have shut down. The warehouses are empty. Children are starving.” Two days earlier, UNICEF Executive Director Catherine Russell expanded on the critical situation in Gaza: “In the past month, more than 75% of households have reported increased difficulty accessing water. Families don’t have enough to drink, cannot wash their hands when needed, and often must choose between showering, cleaning, or cooking,” Russell said in a statement. UNICEF also warned of the prevalence of acute watery diarrhea, especially dangerous for children: “Over 9,000 boys and girls have received treatment for acute malnutrition,” the organization added. At the end of April, during ICJ hearings related to South Africa’s case against Israel, Claire Nicolet, Head of Emergencies at Médecins Sans Frontières (MSF), stated that “Israeli authorities are not only using aid as a bargaining chip but also as a weapon of war.” Since October 7, 2023, 52,567 Palestinians have been killed and 118,610 injured as a result of Israeli attacks, according to the Gaza Health Ministry. Of those fatalities, 2,459 occurred after the March ceasefire was broken. 

Defense & Security
Cambodia in Focus on a Tilted Map.

Change of Course or Continuity? Cambodia at a Crossroads

by Grigory Kucherenko

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском In December 2024, Cambodia reached a key point in its foreign policy. Japan delivered a group of patrol boats to Cambodia as part of the "Free and Open Indo-Pacific" (FOIP) regional initiative. This clearly showed that security cooperation between the two countries is growing stronger. In April 2025, Japan is expected to take another big step by becoming the first foreign country allowed access to Cambodia’s strategically important Ream Naval Base — a facility that has been upgraded by China since 2022.These events, happening just months apart, seem to show Cambodia’s effort to expand its foreign partnerships after relying on China for a long time. The handover of Japanese vessels, while China is leading the base's modernization, is more than just a friendly act from Tokyo. It is a smart move by Cambodia, showing how it is trying to use the rivalry between big powers to strengthen its own security and independence. But can Cambodia really protect its sovereignty by trying to balance the interests of powerful countries? Or is this idea of multiple partnerships just an illusion — hiding the fact that Chinese influence continues to grow? The answers to these questions may shape the future of regional security in Indochina. In August 2023, Hun Manet became Cambodia’s new Prime Minister, replacing his father Hun Sen, who had ruled for nearly 40 years. Unlike his father, Hun Manet has a Western education — he graduated from the U.S. Military Academy at West Point and earned a PhD in economics from the University of Bristol. His background gave some hope to Western diplomats that Cambodia’s foreign policy might move in a direction closer to their values. These hopes were partially fulfilled when Hun Manet’s first major foreign policy statement reaffirmed Cambodia’s commitment to diversifying its international relationships while strictly adhering to the principle of neutrality. This stance was particularly significant, given Cambodia’s longstanding perception among Western analysts as a pro-China state. For years, the Khmer elites have consistently voiced support for the PRC on the international stage, receiving in return substantial investment and infrastructure aid. However, these actions have occasionally strained Cambodia’s ties with neighboring countries — a dynamic noted by officials within the Association of Southeast Asian Nations (ASEAN), of which Cambodia has been a member since 1999. A striking example is the discord surrounding the South China Sea territorial disputes. When affected countries sought to use ASEAN as a platform to pressure Beijing, Cambodia opposed the effort, effectively blocking the adoption of a joint statement in autumn 2024 — something unprecedented in ASEAN’s 45-year history. With a few exceptions, the Khmer elites traditionally supported a policy of non-alignment during the Cold War and, afterward, a neutral stance on foreign affairs. Former Prime Minister Hun Sen himself emphasized that Cambodia seeks ties not only with China, but with all countries, considering this the most beneficial foreign policy path for a developing nation. Among Phnom Penh’s close partners is Japan, which conducts an active foreign policy in the region and stands as one of the Kingdom’s largest economic donors. At the same time, it is important to note that Hun Sen described relations with China as "unbreakable" and consistently rejected external criticism, highlighting only the positive aspects of Cambodia’s deepening ties with Beijing. In the first half of December 2024, Cambodia and Japan signed an agreement on the transfer of military patrol boats to Phnom Penh as part of Japan’s FOIP (Free and Open Indo-Pacific) initiative. Cambodia became the first ASEAN country to receive such assistance. However, the Kingdom has no intention of turning its back on China. The principle of neutrality, which underpins the country’s foreign policy, means that partnership with Japan does not contradict friendship with the PRC. Rather, the combination of the two reflects a strategy of multi-vector diplomacy, enabling Cambodia to benefit from relationships with a variety of partners. This approach is supported by several factors. First, Prime Minister Hun Manet has repeatedly affirmed his commitment to an "independent and neutral foreign policy based on the rule of law, mutual respect, and adherence to the principles of the UN Charter." In his words, this policy aims "to promote national interests, strengthen existing friendships, and build more solid ties." Second, Phnom Penh consistently accepts aid from all willing donors, including Australia through the Cambodia-Australia Partnership for Resilient Economic Development (CAPRED), the United States, Japan, and, of course, China. In 2023, marking the 70th anniversary of diplomatic relations with Japan, Cambodia elevated bilateral cooperation to the level of a Comprehensive Strategic Partnership. With this move, Japan joined a narrow circle of Phnom Penh’s strategic allies — a status previously held solely by China between 2010 and 2023 — advancing from basic diplomatic engagement and standard strategic partnership. Although China surpassed Japan in aid volume back in 2007, Tokyo remains a vital partner for Phnom Penh. Between 1994 and 2021, Japan implemented 210 investment projects in Cambodia totaling $3.1 billion. In 2024, bilateral trade between Japan and Cambodia reached $40.94 billion, placing Tokyo as the Kingdom’s fifth-largest trading partner. This robust economic cooperation underscores Japan’s strategic importance to Cambodia and highlights Phnom Penh’s efforts to diversify its international relationships, avoiding overreliance on any single partner. Despite Japan’s recent delivery of patrol boats to Cambodia, Phnom Penh’s most robust military cooperation remains with China. Between 2016 and 2024, China and Cambodia conducted six joint military exercises under the name “Golden Dragon” (នាគមាស), with each iteration featuring an increase in the number of troops, weaponry, and military equipment involved. Even amid the global threat of the COVID-19 pandemic in 2020, Phnom Penh proceeded with the fourth iteration of these drills, involving nearly 3,000 soldiers — ten times more than in 2016. [1]. The drills also included dozens of combat helicopters, armored vehicles, and various transport assets. This continuous military support from Beijing underscores Cambodia’s growing reliance on Chinese involvement in strengthening its armed forces. Meanwhile, after seven years of joint military exercises with the United States, Cambodia suspended this cooperation in 2017, officially citing scheduling conflicts due to national elections. However, in June 2024, during a meeting between Hun Sen and U.S. Secretary of Defense Lloyd Austin, Cambodia announced the resumption of military cooperation with Washington. Furthermore, the U.S. agreed to revive joint military drills and to once again accept Cambodian cadets for training at the U.S. Military Academy at West Point. For the United States, the primary point of contention has been the Chinese-built Ream Naval Base in Cambodia, despite Phnom Penh’s repeated assurances that the facility is intended solely for use by the Royal Cambodian Navy. Rumors about the base’s development first surfaced in 2018, sparking increased tensions between Phnom Penh and Washington. At the time, however, the U.S. lacked concrete evidence to formally accuse Cambodia of intending to host Chinese military forces on its territory, and American officials limited their response to diplomatic messages expressing concern. In August 2018, then-Secretary of State Mike Pompeo stated that he trusted Cambodia’s assurances that the base would be used exclusively by its own navy, and he praised the Kingdom for its “firm defense of national sovereignty.” In early December 2024, a U.S. Navy vessel arrived in Cambodia in the first port call in eight years — a visit made possible after a prolonged period of strained relations due to sustained American criticism of Cambodia’s human rights record. Cambodia’s Ministry of National Defense stated that the visit was arranged following a request from the United States and would help to “strengthen and expand the bonds of friendship, as well as enhance bilateral cooperation” between the two countries. *** In recent years, the Asia-Pacific region has become a stage for intensifying geopolitical competition, directly impacting Cambodia’s security environment and foreign policy choices. The strategic interests of major powers such as the United States and China increasingly intersect in the region, prompting smaller states — including Cambodia — to explore new pathways for safeguarding their independence and national security. In response to these shifts, Phnom Penh has sought to strengthen its defense capabilities and diversify international partnerships, as reflected in the agreement with Japan on the transfer of military vessels. This move not only enhances bilateral relations with Tokyo but also signals Cambodia’s intent to play a more active role in regional security affairs. Such involvement could enable Cambodia to navigate between competing global powers and maintain its independence amid mounting pressure from both China and the United States.Russia, as one of Cambodia’s traditional partners, may also seek to bolster its regional presence by intensifying diplomatic engagement and offering avenues for cooperation in defense, security, and military technology. This would help Phnom Penh better balance its external relations and maneuver between great powers more effectively. For Moscow, it presents an opportunity not only to deepen ties with Cambodia, but also to expand its influence in Southeast Asia and counter the growing presence of Western actors in the region. 1. Phan Thi Hai Yen. (2024). Cambodia's Strategic Embrace of China: Military Cooperation and Its Implications. ISRG Journal of Arts Humanities & Social Sciences (ISRGJAHSS), II(V), 191–198.

Defense & Security
Main img

ISIS After Assad: Reshaping Its Presence in Syria’s Power Vacuums and the Challenges of Regional Deterrence

by Mohamed Nabil El-Bendary

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском Introduction Amid the rapidly shifting dynamics in Syria and Iraq, international and regional warnings about the resurgence of ISIS have resurfaced, driven by mounting evidence of the group’s reorganization and its exploitation of the security vacuum left by military collapses and political instability. Since late 2024, multiple reports have pointed to a noticeable uptick in ISIS activity, an increase in the frequency of its attacks, and a growing ability to maneuver and recruit—fueled by weak regional coordination and diverging priorities among key international actors. Far from being ideologically defeated, ISIS appears to be reshaping itself within a volatile landscape, threatening to usher in a new phase of instability. Against this backdrop, the following analysis explores the main features of the group’s resurgence, the dynamics of its territorial re-expansion, and the regional and international efforts to contain it—seeking to unpack the nature of this renewed threat and assess its potential implications. International Warnings Over the Growing Threat of ISIS A series of international and regional statements and warnings issued since late 2024 reflect mounting concerns over the reemergence of the terrorist group ISIS on the regional scene, amid fragile security conditions and a diminished capacity to contain unconventional threats. In December 2024, Iraqi Foreign Minister Fuad Hussein, in a phone call with the UK Minister of State for the Middle East and North Africa, Hamish Falconer, revealed alarming signs of ISIS regrouping. He noted that the organization had managed to seize large stockpiles of weapons following the collapse of Syrian army units that abandoned their arsenals—enabling ISIS to expand its territorial presence in parts of Syria. This alarming development has not only been flagged by Iraq but has also featured prominently in international reports. On February 10, 2025, the UN Under-Secretary-General for Counter-Terrorism, during a briefing before the Security Council, confirmed that ISIS continues to demonstrate a striking ability to adapt and evolve its tactics, despite ongoing security and military pressure from member states and international and regional partners. The 20th report of the UN Secretary-General on the threat posed by ISIS to international peace and security emphasized that the group has not been ideologically defeated; rather, it is restructuring itself within the security and political voids present in Syria, Iraq, and other areas. In the same context, Russian Deputy Foreign Minister Sergey Ryabkov warned in March 2025 of a "real danger" posed by ISIS’s resurgence in Syria, pointing to the lack of political settlements and the breakdown of certain internal security structures as conditions conducive to the group's return. His warning echoed the concluding statement of the meeting of foreign ministers from Syria’s neighboring countries, held in Amman, Jordan, on March 9, 2025. The ministers expressed deep concern over the escalating ISIS threat and underscored the need to strengthen regional cooperation mechanisms—particularly in intelligence sharing and coordinating security operations along Syria’s borders with Jordan, Iraq, and Lebanon. In a joint press conference following the meeting, Iraqi Foreign Minister Fuad Hussein stressed that "combating ISIS is no longer a local issue, but a collective responsibility that demands effective regional readiness and robust international support." He highlighted that the group’s threat has grown not only in terms of manpower but also in terms of military capabilities, and that its reach is now expanding beyond border areas into the Syrian heartland itself. These developments indicate that, despite the significant blows dealt to it in recent years, ISIS continues to benefit from the fluid geopolitical landscape in Syria—one that creates security gaps the group can exploit to reposition and reorganize itself. Furthermore, the conflicting priorities among international and regional actors in the Syrian file are hindering the formation of a unified front to confront this renewed threat. This fragmentation makes the challenge far more complex and reinforces the notion that the battle against ISIS remains far from over—both on the ground and within the broader framework of collective security. Signs of Escalation ISIS continues to consolidate its presence in Syria through its deployment across two geographically separate yet strategically interconnected regions—demonstrating the group’s persistent ability to exploit security gaps and divergences among local and international actors. The first area lies in Syria’s northeastern region, known as al-Jazira, which is nominally under the control of the U.S.-backed Syrian Democratic Forces (SDF). Despite this control, ISIS has maintained a notable presence in the southern desert of al-Hasakah province, geographically linked to the northeastern outskirts of the city of Al-Bukamal, particularly around the town of Al-Baghuz—the group’s last urban stronghold before its official collapse. This geographic footprint extends beyond Syria’s borders into Iraq, specifically into the Hadar desert in Nineveh province. Although concrete barriers now separate the two countries, ISIS has retained a clear ability to move across the border, as confirmed by testimonies from residents in the rural areas of al-Hasakah—rekindling memories of the "parallel state" dynamic the group sought to establish during its peak between 2014 and 2017. The year 2024 saw a marked increase in ISIS activity within Syria. According to the Syrian Observatory for Human Rights, the group carried out 491 operations throughout the year. In its report released on December 30, 2024, the Observatory noted that ISIS has successfully exploited political and military turmoil to reorganize and launch targeted attacks. In line with this, the Soufan Center reported on December 18 that ISIS attacks had tripled in frequency compared to 2023. Meanwhile, U.S. Central Command (CENTCOM) confirmed on July 17 that the group claimed responsibility for 153 attacks in Iraq and Syria during just the first half of 2024—clearly reflecting a strategy aimed at “escalating operational activity to compensate for structural decline.”  This upward trend reinforces the growing assumption that ISIS is leveraging fragile security conditions not only to expand its territorial influence but also to challenge other extremist groups—most notably Hay’at Tahrir al-Sham (HTS) in northern Syria. HTS has faced internal challenges linked to the novelty of its governance experiment and has been weakened by surprise attacks that undermine its structure and heighten insecurity in its areas of control. ISIS, in turn, appears intent on diffusing HTS’s efforts, exacerbating divisions among factions, and exploiting public discontent with local elites. These developments have also triggered serious concerns over potential spillover effects in Iraq, especially given the deeply interwoven geographic linkages between the Syrian and Iraqi theaters of operation. The cross-border mobility of ISIS operatives could reactivate dormant cells in Iraq’s western and northern provinces—particularly given the thousands of radicalized individuals currently held in Iraqi prisons, making these facilities potential targets for jailbreaks or attempts to reassert control, as seen in the earlier Ghweran prison attack in al-Hasakah. In light of this complex battlefield landscape, the fight against ISIS is far from over. The group—demonstrating notable tactical agility—is reconstituting itself within existing voids, capitalizing on fragmentation, and continually seeking new pathways for resurgence through the shifting terrain of regional geopolitics. The inability of certain local and regional powers to formulate a sustainable, collective counterterrorism strategy only further emboldens the group’s ambitions. Contours of a New Phase in the War Against ISIS The final months of 2024 and early 2025 witnessed a series of high-profile operations targeting senior ISIS leaders, signaling a tactical shift in the counterterrorism strategies adopted by international and regional powers. This shift marks the beginning of a new phase in the fight against ISIS—one that moves beyond random strikes to a focused campaign against the group’s leadership infrastructure. On December 20, 2024, U.S. Central Command (CENTCOM) announced a precision airstrike in Syria’s Deir ez-Zor province, initially claiming it had killed ISIS’s leader, known as “Abu Yusuf.” However, CENTCOM later revised its statement, clarifying that the target was not the overall leader but a senior commander named Mahmoud “Abu Yusuf,” along with two of his aides. This correction reflects the complex intelligence challenges involved in identifying high-ranking ISIS figures, especially in an environment riddled with infiltration and security deception. In a related development, Iraqi Prime Minister Mohammed Shia’ Al-Sudani announced in March 2025, via a post on the platform X, the killing of one of the group’s most dangerous operatives: Abdullah Maki Masleh Al-Rifai, known as “Abu Khadijah,” who held the title of “Wali of Iraq and Syria” within ISIS's organizational structure. His elimination, the result of coordinated efforts between Iraqi intelligence and the Joint Operations Command—supported by the international coalition—demonstrates the effectiveness of multi-layered coordination in tracking down the group’s hidden leadership. On the European front, France returned to active operations against ISIS in Syria for the first time in over two years. In December 2024, French Armed Forces Minister Sébastien Lecornu announced that French warplanes had conducted precision strikes on ISIS positions inside Syrian territory. He emphasized that the operation, carried out the previous Sunday, underscored France’s continued commitment to counterterrorism efforts in the Levant. This marked France’s first such strike since September 2022—indicating a potential reactivation of its counterterrorism role and a broader effort to reassert European engagement in Syria, a file that has largely been dominated by the U.S., Russia, and Turkey. These three operations—American, Iraqi, and French—reflect what appears to be a renewed “leadership decapitation campaign” targeting ISIS commanders amid rising concerns over the group’s resurgence in Syria and Iraq. Yet, while such strikes carry strategic importance, they cannot substitute for broader efforts to dismantle the ideological, organizational, and financial foundations that allow ISIS to regenerate. Killing leaders may temporarily weaken the group’s capabilities, but it does not ensure its eradication unless accompanied by comprehensive political and security solutions that address the roots of extremism and the institutional fragility on which the group thrives. In a notable development suggesting a qualitative shift in how regional states are approaching the terrorism file, Turkey, Jordan, Iraq, and Syria announced in February 2025 the establishment of a joint cooperation mechanism to confront ISIS. The agreement emphasizes close coordination between foreign and defense ministries and intelligence agencies, covering areas such as border security, intelligence sharing, and joint military operations. This move reflects a shared recognition that the terrorist threat transcends borders and demands coordinated frameworks that go beyond bilateral interests toward a collective regional security logic. This agreement laid the foundation for a broader process that culminated in a high-level five-party summit on March 8, 2025. The meeting brought together foreign and defense ministers, senior military commanders, and intelligence chiefs from the four founding countries, with Lebanon later joining the process. From the Turkish side, the meeting was attended by Foreign Minister Hakan Fidan, Defense Minister Yaşar Güler, and intelligence chief İbrahim Kalın—highlighting Turkey’s strategic investment in this forum as a platform for reshaping the security landscape in northern Syria and Iraq. More broadly, this nascent regional alliance reflects a growing inclination to reduce dependence on Western powers in managing regional security issues. Instead, it seeks to establish a “new security architecture” led by Middle Eastern nations themselves—reviving the role of Arab and regional capitals in controlling border zones and reclaiming areas that ISIS may seek to exploit as fallback havens for regrouping and redeployment. Conclusion The available data indicates that ISIS is entering a new phase of reactivation and repositioning in the Syrian theater, capitalizing on the security and political collapse following the fall of central authority, and on the conflicting agendas of regional and international actors. Despite targeted strikes against some of its leaders, the group continues to demonstrate its operational adaptability and its ability to evolve amid shifting field dynamics. The resurgence of ISIS attacks and its expansion into ungoverned spaces signal a complex phase of confrontation—one that demands more than just military maneuvers. The success of the war against ISIS in Syria depends not only on precision strikes but also on the establishment of effective regional security partnerships and the activation of political and developmental pathways that address the root causes of extremism. As the group seeks to exploit divisions, its complete disappearance will hinge on the creation of a comprehensive deterrence architecture—one that goes beyond temporary fixes and moves toward sustainable strategies that tackle the structural foundations of militancy, not just its symptoms.

Defense & Security
world map of ethiopia and bordering countries sudan kenya somalia and eritrea

Ethiopia-Somalia Tensions: Power Dynamics and Extra-Regional Actors in the Red Sea Region

by Federico Donelli

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском Signed in 2024, the Ethiopia-Somaliland Memorandum of Understanding (MoU) has reshaped regional dynamics, potentially granting Ethiopia sea access via Berbera in exchange for Somaliland’s recognition. This move challenged Somalia’s territorial integrity and prompted Mogadishu to align itself with Egypt, Eritrea, and Djibouti against Ethiopia. While the crisis reflects Ethiopia’s strategic push for a maritime presence, it also captures Somaliland’s long-standing quest for independence. In the wider Red Sea region, regional tensions are exacerbated by extra-regional actors which include the UAE, Turkey, France, and Saudi Arabia, all of which have their own interests therein. Although, external actors do not directly cause conflict, their involvement emboldens local actors and escalates rivalries. Hence, the Red Sea region has a growing importance in contemporary global geopolitics. Ethiopia-Somaliland MoU: Geopolitical Ambitions and the Quest for Recognition The year 2024 began with the signing of a Memorandum of Understanding between Ethiopia and Somaliland. The latter, formerly British Somaliland, was part of Somalia, from which it unilaterally seceded after Siad Barre’s regime collapsed in 1991. Since then, Somaliland has been self-ruled and is considered a de facto state. However, the Hargheisa authority does not enjoy any international legal recognition. If implemented, the agreement with Addis Ababa would give Somaliland its first significant de jure recognition. In return, the Hargheisa authorities would grant Ethiopia access to the sea through the port of Berbera and the concession of a coastal area for military use. The situation revolves around three key regional players: Ethiopia, Somalia, and Somaliland. Each of these actors has engaged in activities driven by its own objectives and strategic priorities. Ethiopia’s decision is influenced by several practical economic and strategic factors. Following the Eritrean War in the early 1990s, Ethiopia lost its Red Sea ports and became the world’s most populous landlocked country. Since 1998, Djibouti’s ports have handled 95 per cent of trade to and from Addis Ababa. Sea access through Djibouti costs Ethiopia between $1.5 and $2 billion annually which Ethiopia’s rulers, since 2019, begun to express more strongly that they consider this spending excessive and unsustainable in the medium to long term. To reduce Addis Ababa’s dependence on Djiboutian ports, the government of Prime Minister Abiy Ahmed believes it is necessary to find a viable alternative. Before the MoU, Ethiopia had considered several alternatives to Djibouti, including Eritrea, Somalia, and Kenya. The idea of developing an economic and trade corridor between Addis Ababa and the port of Berbera on the Gulf of Aden began to take shape in the final months of 2023. Somaliland’s main port has been operated by the Emirati company – DP World since 2015, which has developed its infrastructure and increased its cargo transit capacity. Ethiopia estimates that it can divert between 12 and 15 per cent of the total volume passing through Djibouti’s ports to Berbera and, in the long term, connect its industrial zones to several trade corridors. From a strategic point of view, Ethiopian assessments are influenced by Addis Ababa’s national role conception. Ethiopia sees itself as the leading regional power because of its history and traditional economic and political weight in the region. Consequently, Ethiopian elites perceive the Red Sea and the Gulf of Aden as their natural strategic spheres. For this reason, the Ethiopian Institute of Foreign Affairs recently announced the ‘Grand Strategy of the Two Waters.’ The new agenda aims to expand the sphere of national interest and action eastwards towards the sea, unlike in the past when the focus of Ethiopia’s strategic projection was mainly on the Nile Basin. Indeed, Ethiopia’s ambitions as a regional power are challenged by its lack of a maritime gateway. For Addis Ababa, having a presence in the Red Sea would provide two strategic benefits: first, it would strengthen its standing in the region; second, it would bolster Ethiopia’s international role by enhancing cooperation in multilateral anti-piracy efforts. In short, the Ethiopian government sees maritime projection as a strategic resource and a gateway to the geopolitics of the coming decades, which will focus on Asia and the Indo-Pacific in particular. Therefore, one of the key clauses of the MoU allows Ethiopia to establish a military outpost in Lughaya, a town overlooking the Gulf of Aden, for at least fifty years. According to Ethiopian plans, the naval base will become the headquarters of the nascent Ethiopian navy. For Somaliland, the MoU represents a further step on the difficult path to independence. In the past year, the issue of Somaliland’s independence has gained renewed attention and relevance. This pursuit of self-determination is deeply rooted in a historical context that stretches back to the 19th century, predating the regime of Siad Barre. The Somalilanders’ path began during a pivotal time when the British Empire established agreements with various Somali clans, particularly the Gadabuursi, Issa, and Habr Awal. In 1884, the region was officially designated as British Somaliland, a protectorate that enjoyed a measure of autonomy and governance, distinguishing it from the colonial dominance exerted by Italian authorities in southern Somalia. Following the unification of Somaliland with the Trust Territory of Somalia in 1960, the social, economic, and political conditions of the people of Somaliland began to deteriorate, leading to widespread discontent and a strong desire for independence. Over time, the Siad Barre regime cast a long shadow over Somaliland, leading to widespread discrimination and marginalisation. The political and economic machinations of the central government often neglected the aspirations of the Somaliland people, fuelling a growing sense of injustice. In this context, collective memory became a powerful cornerstone of identity, highlighting the stark contrasts between Somaliland’s struggles and Somalia’s divergent trajectories in the turbulent post-Siad Barre era. Hargheisa’s quest for independence is rooted in historical grievances and reflects the unique identities and trajectories of its people. The Somaliland narrative often draws comparisons with the current situation in the rest of Somalia. Over the past three decades, this de facto state has made significant progress towards sustainable institutional and administrative development albeit on a very limited budget. The democratisation process is also crucial to further the development of Somaliland’s independence. The recent national elections held last November demonstrated the political maturity of all parties involved. The peaceful transfer of power from the defeated government to the electoral process is a remarkable event in the region and stands out as one of the few such instances in the continent. The achievements of the institution-building process in Somaliland are even more striking when compared to the path taken by Somalia. Somalia’s Diplomatic Counterbalance and the Emergence of an Anti-Ethiopian Block  The signing of the MoU by Ethiopia and Somaliland raised concerns among regional actors, particularly Somalia. As Somaliland is formally and legally recognised as an integral part of Somalia, there were fears that Hargeisa’s claims to independence were gaining momentum. Mogadishu was particularly concerned that Ethiopia’s official recognition of Somaliland’s claims could trigger a domino effect, leading other regional and extra-regional actors to follow suit. Therefore, Somalia saw Ethiopia’s actions as a deliberate act of intimidation that threatened its territorial integrity at a sensitive time for its political future. Somalia faces several challenges, including the struggle to establish an effective institutional framework, particularly with regard to the relationship between the central government and the federal states, and also the fight against the terrorist group – al-Shabaab. In response to the MoU, the Somali executive, led by President Hassan Sheikh Mahmoud, launched an intense diplomatic campaign to prevent its implementation and recognition by the international community. Somalia has sought support from regional organisations such as the Intergovernmental Authority on Development (IGAD), the East African Community (EAC), and the African Union (AU). In doing so, Somalia has consolidated alliances with both regional and extra-regional actors. As a result, the dynamics between these three actors – Somalia, Ethiopia, and Somaliland have become increasingly intertwined. Mogadishu’s natural anti-Ethiopian partners are two of Addis Ababa’s historical rivals: Eritrea and Egypt. Compared to 2018, the year of normalisation between Ethiopia and Eritrea, the situation today is very different. The positions of Eritrean President Isaias Afwerki and Prime Minister Abiy Ahmed quickly diverged following the signing of the Pretoria Agreement (2022), which ended the two-year conflict in Tigray. Eritrea, which had supported the Ethiopian military campaign, refused to negotiate with the Tigrayan authorities, represented by the Tigrayan People’s Liberation Front (TPLF). The distance between the two leaders has widened as Ethiopia’s claims to the sea have grown. Indeed, Asmara fears that Ethiopia is eyeing its ports, a fear fuelled by the rhetoric of Abiy and other Ethiopian leaders. Conversely, Isaias has used his leadership and many regional relationships to foster a kind of ‘anti-Ethiopian coalition’. One significant change has been Egypt’s increasing involvement in the region. Mogadishu’s rapprochement with Cairo was formalised in August 2024 with the signing of a defence agreement. This agreement centres on Egypt’s intention to support Somalia’s request for the withdrawal of all Ethiopian troops currently stationed in Somalia as part of the African Union peacekeeping mission (formerly known as Atmis, replaced by the Aussom mission on 1 January 2025). The strengthening of Somali-Egyptian relations, supported by Asmara and involving Djibouti through a security cooperation agreement, has consolidated an anti-Ethiopian bloc. This alignment represents a significant shift in the regional balance and illustrates Egypt’s changing Africa policy. Since 2020, Egypt has reaffirmed the importance of its southern relations. President Abdel Fattah al-Sisi has gradually reassessed Egypt’s African relations and promoted a geopolitical strategy that emphasises a north-south axis, rather than the east-west axis that dominated in previous decades. The Red Sea region, including the Nile Basin, is now a key part of this new strategic framework, which is shaped by Egypt’s historical rivalry with Ethiopia. Between the two states, the balance on the Nile has changed. The construction of the Grand Ethiopian Renaissance Dam (GERD) has given Ethiopia a strategic advantage over Egypt. Egypt therefore had to adapt its approach to the ongoing dynamics by deciding to expand the areas of contention toward the sea. Tensions between Ethiopia and Somalia therefore provided an opportunity to increase Egypt’s footprint in the region. Regional Tensions and Extra-regional Actors in the Red Sea The MoU signed by Ethiopia and Somaliland has opened a new phase in tensions. The focus of regional tensions is shifting to the coastal areas, particularly the Red Sea and the Gulf of Aden, which are marked by a number of security and defence agreements. Common strategic interests underpin the alignment of the anti-Ethiopian bloc, which includes Somalia, Djibouti, Eritrea, and Egypt. Somalia views any legal recognition of Somaliland’s independence as an existential threat. For Djibouti, the economic damage from increased trade through Berbera is marginal but potentially devastating to its fragile internal balance of power. Eritrea perceives Ethiopia as an ongoing threat, and the current Ethiopian government is seen by Asmara as highly unreliable, raising concerns about a potential escalation of violence along their shared borders. Finally, for Egypt, the assessment of its regional position is of particular importance. Traditionally, Cairo has regarded the waters between Suez and Aden as its ‘lake’. As a result, like Addis Ababa, it regards the entire region as part of its sphere of influence. The United Arab Emirates (UAE) and Turkey are among the most active players in the region. The UAE has supported the MoU to capitalise on investments in Berbera and Addis Ababa. Turkey, on the other hand, has taken a more balanced approach, thanks to its strong political and commercial ties with Ethiopia and Somalia. For Ankara, however, Somalia’s integrity must not be questioned. Following their rapprochement in 2021, the UAE and Turkey have maintained good relations. Despite their different strategies and some disagreements, both nations share a common interest in maintaining a central role in regional affairs. Other extra-regional players, such as France and Saudi Arabia, are also active in the background. France supports the MoU as part of its ongoing efforts to increase its presence in East Africa, which began at the same time as its withdrawal from the Sahel region. Its base in Djibouti is destined to become more central to French policy as French military presence in West Africa is being reduced. French officials see this increased influence in regional affairs as essential to France’s future interests in the Indo-Pacific region. Meanwhile, Saudi Arabia, whose geopolitical focus is shifting from the Gulf to the Red Sea, opposes the implementation of the agreement between Ethiopia and Somaliland. It seeks to counter regional projects promoted by the UAE. This might be as a result of the long-standing political rift between the two Gulf monarchies. Extra-regional actors do not directly cause an increase in regional conflicts. Rather, it is local actors who, feeling empowered by their connections with these extra-regional partners, perceive their environment as more permissive and gain the confidence to take assertive actions that they may not have considered before. Understanding these dynamics sheds light on why Ethiopia and Somaliland decided to sign the MoU at this historic moment. This perspective also helps to explain other regional crises, such as the civil war in Sudan and the conflict in Tigray. The different transformations in the international system have created a context in which local actors can seek multiple forms of external support. Increased alignment and overlap between local and regional rivalries has increased the willingness of actors to take assertive action, leading to a general increase in inter- and intra-state tensions. However, the flexible nature of alliances can also mitigate the risk of the trickle-down effect that often accompanies such alliances. This work is licensed under the Creative Commons Attribution-Non Commercial 4.0 International License (CC BY-NC 4.0): https://creativecommons.org/licenses/by-nc/4.0/

Defense & Security
Philippines and China flags are waving in the sky. Double country Flag waving with mast. Philippines china national flag for agreement.

Geopolitical disputes: China and the Philippines in the South China Sea

by Eduardo García Torres

한국어로 읽기 Leer en español In Deutsch lesen Gap اقرأ بالعربية Lire en français Читать на русском The South China Sea (SCS) is a strategic region in international geopolitics and a hotspot of disputes involving sovereignty, economy, and security. This text analyzes the positions of two key actors in the region — China and the Philippines — whose growing tensions have been a defining factor in the evolution of the conflict. Located in Southeast Asia, the SCS borders China, Vietnam, the Philippines, Malaysia, Brunei, and Indonesia, and connects the Pacific to the Indian Ocean through the Strait of Malacca, one of the busiest maritime routes. Its wealth in fishery and energy resources has intensified disputes over the Pratas, Macclesfield, Paracel, and Spratly Archipelagos, which are claimed entirely or partially by China, the Philippines, Vietnam, and Malaysia. In this context, the SCS holds significant geopolitical importance. From the classical perspective of Alfred T. Mahan, maritime control is essential for a country to consolidate itself as a power, as it enables access to strategic resources, trade routes, and the projection of military power. Today, this remains a key factor of political, economic, and military influence in the macro-region that authors such as Ulises Granados (2022) refer to as the Indo-Asia-Pacific. On the other hand, from the perspective of critical geopolitics, the SCS conflict is a dispute rooted in the construction of geographic and political meanings. According to Gerard Toal, space is not fixed but rather a construction shaped by power relations and discourses. One example is its naming: China calls it the South Sea, the Philippines refer to it as the West Philippine Sea, and Vietnam calls it the East Sea. Each name not only reflects a territorial claim but also a geopolitical imaginary. Interests in the SCS date back to the late 19th and early 20th centuries, when Japan exerted control over some areas through the state and its corporations. However, after World War II, sovereignty over these territories remained undefined, leading to competing claims from neighboring countries. During the Cold War, the United States strengthened its alliance with the Philippines and other Southeast Asian nations to contain communism, while China consolidated its presence in areas like the Paracel Islands. This context has been key in shaping the current competition over the sea. The Chinese government claims sovereignty in the SCS based on historical precedents going back to the Han dynasty. Beijing argues it recovered the Spratly and Paracel Islands after World War II, invoking the Cairo Declaration (1943) and the Potsdam Declaration (1945), which called for the return of territories occupied by Japan. In 1958, China issued the Declaration on China’s Territorial Sea, incorporating the Pratas (Dongsha), Paracel (Xisha), Macclesfield (Zhongsha), and Spratly (Nansha) Islands into its sovereign territory. Later, in 2009, it reaffirmed its claim through the Nine-Dash Line (NDL), a delimitation drawn in 1947 that encompasses nearly 80% of the SCS. Although this line is not clearly defined in international law, Beijing maintains that it holds sovereign rights within it and that disputes should be resolved without intervention from extra-regional actors — a stance that contrasts with the Philippines’ actions, which have sought international support to strengthen their position. From China’s perspective, its claims in the SCS are essential to its sovereignty and national security. For this reason, it has increased its naval, paramilitary, and civilian presence. Maritime projection and control of trade routes are also key aspects of its strategy to advance initiatives such as the Belt and Road Initiative, which is fundamental to its regional and international economic growth. In contrast, the Philippines has claimed sovereignty over the Spratly Islands since the 1970s and has resorted to legal and media avenues to denounce China. In 1995, it protested China’s construction of structures on Mischief Reef, and in 1997, it stationed the Sierra Madre ship in the Spratlys. Today, the Philippine Navy maintains operations in the area. Moreover, in 2002, the Association of Southeast Asian Nations (ASEAN) and China signed the Declaration on the Conduct of Parties to promote the peaceful resolution of disputes. However, tensions escalated in 2009 when China reaffirmed the Nine-Dash Line. In response, in 2013, the Philippines brought the case before the Permanent Court of Arbitration (PCA), arguing that China was violating the 1982 United Nations Convention on the Law of the Sea and asserting its rights over exclusive economic zones. In 2016, the Permanent Court of Arbitration (PCA) ruled in favor of the Philippines, concluding that China's claims lacked legal basis under international law. However, China rejected the ruling, stating that it does not reflect its interpretation of territorial sovereignty based on its history and legal frameworks. Moreover, Beijing considered the Philippine complaint a unilateral action. In 2024, the Philippines enacted the “Maritime Zones Law” and the “Archipelagic Sea Lanes Act,” which define its maritime rights in the South China Sea. In response, China’s Ministry of Foreign Affairs rejected both laws, arguing they violate its sovereignty. From the Philippine perspective, China’s actions represent a challenge to its security, prompting it to seek support from ASEAN for a joint response in the SCS. However, the bloc’s positions are divided: the Philippines actively denounces China, Vietnam takes a more pragmatic approach, and Malaysia avoids confrontation. These differences have led ASEAN to adopt a moderate stance, prioritizing diplomacy over conflict. In summary, the Philippines is strengthening its alliance with the United States under the 1951 Mutual Defense Treaty, which ensures assistance in the event of an attack in the Pacific, including the SCS. This cooperation aligns with the U.S. geopolitical strategy in Asia, which has evolved from Obama’s “Asia Pivot” to the “Indo-Pacific” vision, focused on a “rules-based order” and the security of trade routes. However, the exclusion of China has led to perceptions that this strategy is a containment mechanism against the world’s second-largest economy. For example, China’s Foreign Minister Wang Yi argues that the U.S. strategy aims to “besiege and contain China” through alliances that promote confrontation. He also claims it undermines regional cooperation, while the Asian giant promotes a “community with a shared future in the Asia-Pacific” based on integration and stability. Thus, China employs the concept of the Asia-Pacific and, although it remains cautious in its rhetoric, insists that its approach prioritizes cooperation and avoids a bloc-based logic in the region. In this context, during Balikatan, a joint military exercise between the U.S. and the Philippines in April 2024, Washington deployed Typhon missile systems in the northern part of the country. By the end of the year, Manila expressed interest in acquiring them, which Beijing perceived as a threat. In 2025, Ferdinand Marcos Jr. stated he would reconsider the U.S. military presence if China ceased its territorial claims. China has not officially responded, and these remarks could be part of Philippine political rhetoric, reflecting its perception of threat in the region. Additionally, the Philippines has strengthened security cooperation with Japan, which also faces territorial disputes with China. In 2024, they signed a Reciprocal Access Agreement to facilitate military deployments, and Japan supported the modernization of the Philippine Navy. In 2025, both nations reaffirmed their commitment to a free and open Indo-Pacific. While Manila strengthens its position through strategic alliances, Beijing views this as an attempt to internationalize the conflict. Another point is that the Philippines’ approach varies depending on the administration in power. During Rodrigo Duterte’s presidency (2016–2022), Manila prioritized closer ties with Beijing, favoring economic cooperation. In contrast, the arrival of Ferdinand Marcos Jr. in 2022 strengthened the alliance with the United States, increasing defense and security cooperation, but also escalating tensions with China. On the other hand, while the U.S. has expanded its presence in the Asia-Pacific region, Trump’s first term (2017–2021) had a more isolationist approach compared to the Obama (2009–2017) and Biden (2021–2025) administrations. The Philippine government hopes to maintain the agreements reached in 2024, although their continuity will depend on how the new Trump administration (2025–) manages its Indo-Pacific strategy. Moreover, the Philippines cannot fully align with just one actor, as both China and the U.S. are essential to its economy. The United States is its main export market, according to the Philippine Statistics Authority, while China is its largest source of imported goods, top investor, infrastructure partner, and shares agreements such as the Regional Comprehensive Economic Partnership (RCEP). Therefore, while Manila strengthens its defense cooperation with the U.S. and maintains strategic interests in the South China Sea, its relationship with China remains crucial due to its economic importance. Final Considerations From a geopolitical perspective, cooperation between the Philippines and the United States seeks to counterbalance China's presence in the region, while China reinforces its position in the SCS for sovereignty and security reasons. In this context, the relationship between Manila and Washington, along with the stance of ASEAN members, will be decisive in the evolution of the conflict. Thus, the dispute in the South China Sea reflects a geopolitical competition between regional and extra-regional actors for control of strategic areas, where each defends its own interests. Although none of the parties appear to seek open conflict, increasing militarization and patrols have raised the risk of incidents that could escalate tensions. In this context, the future will depend on the willingness of actors to negotiate concessions, although the lack of consensus and divergent interests make a definitive solution unlikely in the short term. In this way, Alfred T. Mahan’s theories on maritime power remain relevant in the SCS, although their application is not absolute. Beyond the control of sea routes, the competition also unfolds through the construction of narratives by regional and external actors. The way these narratives shape alliances and perceptions will be key in defining power dynamics in the region.