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Drug trafficking is the illegal trade, in large quantities, of drugs or narcotics (RAE, 2025). However, while this definition is accurate, it is insufficient to describe the complexity of a global phenomenon that transcends borders and involves the production, purchase, and distribution of illicit substances.

Drug trafficking has developed hand in hand with global trade and interconnection (Saldaña, 2024). In other words, the evolution of drug trafficking is closely linked to globalization, which has strengthened the logistical, technological, and financial networks that enable its expansion. Therefore, more than isolated crime, drug trafficking must be understood as a transnational system of power that feeds on globalization itself.

Drug Trafficking as a Transnational System of Power

Drug trafficking is described by some authors as a profoundly complex transnational phenomenon resulting from globalization (Luna Galván, Thanh Luong, & Astolfi, 2021). This phenomenon involves and connects global networks of production, logistics, financing, and consumption, all made possible by economic interdependence, information technologies, and established global logistical routes.

These authors analyze drug trafficking from a multidimensional perspective, identifying seven interrelated spheres that sustain this activity: the economic (money laundering and investment diversification), institutional (corruption and institutional capture), organizational (organized criminal networks and advanced logistics), social (presence in territories with state vacuums and community legitimization), technological (use of cryptomarkets, encryption, and innovation), geopolitical (route adaptability and resilience against state policies), and cultural (narratives and subcultures that normalize illicit practices) (Luna Galván, Thanh Luong, & Astolfi, 2021).

These dimensions form a web of relationships in which criminal groups not only control the flow of drugs but also influence economic and political structures. As Interpol (n.d.) warns, this global network undermines and erodes the political and economic stability of the countries involved, while also fostering corruption and generating irreversible social and health effects.

Furthermore, drug trafficking is intertwined with other crimes — such as money laundering, corruption, human trafficking, and arms smuggling — thus forming a globalized criminal ecosystem, a global issue and a national security concern for nations worldwide.

Origins and historical context

There are records of the use of entheogenic drugs for ritual or medicinal purposes in Mesoamerican cultures — such as the Olmecs, Zapotecs, Mayas, and Aztecs (Carod Artal, 2011) — as well as in Peru (Bussmann & Douglas, 2006), the Amazon region, and even today among the Wixárika culture in Mexico (Haro Luna, 2023). Likewise, there was widespread and diverse drug use among the ancient Greeks and Romans, including substances such as mandrake, henbane, belladonna, cannabis, and opium, among others (Pérez González, 2024). However, modern drug trafficking can trace its origins to the First Opium War (1839–1842) between the Chinese Empire (Qing Dynasty) and the British Empire, marking the first international conflict directly linked to the drug trade.

During the second half of the 19th century and the early 20th century, several drugs —such as heroin, cocaine, cannabis, and amphetamines — made their debut in the pharmaceutical field, being used in medicines and therapeutic remedies (López-Muñoz & Álamo González, 2020).

This period is considered the pharmaceutical revolution, characterized by the emergence of researchers, research centers, and major discoveries in the field. During that time, the term “drug” began to be associated with “addiction.” The pharmaceutical revolution had its epicenter in Germany; however, it was the British and Americans who promoted its expansion (Luna-Fabritius, 2015) and contributed to the normalization of psychoactive substance consumption.

Military promotion, use and dependence

Armed conflicts — from the U.S. Civil War (1861–1865) to the First World War (1914–1918) — played a key role in spreading and promoting the military use of psychoactive substances. For instance, stimulants such as alcohol, cocaine, amphetamines, and methamphetamines were used to combat sleep, reduce fatigue, boost energy, and strengthen courage, while depressants like opium, morphine, and marijuana were used to relieve combat stress and mitigate war trauma (Marco, 2019).

The dependence that developed led to a process of expansion among the civilian population, which entered a period of mass experimentation that often resulted in substance abuse and chemical dependency (Courtwright, 2001). In response, the first restrictive laws emerged, particularly in the United States (López-Muñoz & Álamo González, 2020).

However, the high demand for certain substances, such as opium, gave rise to the search for markets capable of meeting that demand. Thus, Mexico — influenced by Chinese immigration that introduced the habit of smoking opium in the country — became, by the 1940s, the epicenter of poppy cultivation and opium processing in the region known as the Golden Triangle (Sinaloa, Durango, and Chihuahua). It became the main supplier for drug markets in the United States and other parts of the continent, at times providing up to 90% of the demand during periods of shortage (Sosa, 2025).

Even during World War II (1939–1945) — when the traditional supply of heroin and morphine to Europe was disrupted — Mexico strengthened its role in the illicit trade by providing smoking opium and processed morphine or heroin. These developments, alongside the implementation of opiate regulations in Mexico, helped consolidate and structure Mexican drug trafficking, which has persisted for more than sixty years (Sosa, 2025).

Social expansion and regulatory restrictions

The end of World War II brought stricter restrictions and regulations, but that did not prevent socio-cultural movements such as the hippie movement (in the 1960s) from adopting the use of marijuana, hashish, LSD, and hallucinogenic mushrooms (Kiss, 2025) without facing severe repercussions.

That same hippie movement — which promoted pacifism and opposed the Vietnam War (1955–1975) — in one way or another encouraged drug use among young people. Moreover, the demand for substances by returning veterans led to the internationalization of drug markets, fostering, for example, the heroin trade from Southeast Asia (Laos, Myanmar, and Thailand) (Saldaña, 2024).

The Nixon administration and the US “War on Drugs”

The dependency became so severe that it was considered a public health emergency in the United States. On June 18, 1971, Richard Nixon declared the “War on Drugs” at an international level, labeling drug trafficking as “public enemy number one” (Plant & Singer, 2022). Nixon’s strategy combined international intervention with increased spending on treatment and stricter measures against drug trafficking and consumption (Encyclopedia.com, n.d.), along with the creation of the Drug Enforcement Administration (DEA) in 1973.

Although the War on Drugs was officially declared in 1971, it had a precedent in 1969 with the failed Operation Intercept, whose goal was to combat marijuana trafficking across the U.S.–Mexico border (M. Brecher, 1972). As part of his international strategy, Nixon launched several operations such as Operation Condor with Mexico (1975 and 1978), Operation Stopgap in Florida (1977), and Operation Fulminante, carried out by Colombian President Julio César Turbay in 1979. Most of these efforts were aimed at combating marijuana trafficking. The results were mixed, but the consequences were significant, as drug traffickers resisted and adapted — giving rise to a more active and violent generation and marking the consolidation of modern drug trafficking.

The Consolidation of Modern Drug Trafficking: Colombia and Reagan Era.

During the 1980s and 1990s, drug trafficking evolved into a highly organized industry. Figures such as Félix Gallardo [1], Amado Carrillo Fuentes [2], Pablo Escobar [3], Carlos Lehder [4], Griselda Blanco [5], Rafael Caro Quintero [6], and later Joaquín “El Chapo” Guzmán Loera [7], among others (Wikipedia, 2025), symbolized the growing power of the cartels in Colombia and Mexico.

During this period, criminal organizations consolidated their operations, and the profits from drug trafficking fueled violence and corruption. Moreover, the struggle for power — not only in Mexico, Colombia, Peru, or the United States but also in other regions of Latin America — and the competition for markets led to greater sophistication, as well as the construction of infrastructure and distribution networks. Pablo Escobar’s famous phrase, “plata o plomo” (“silver or lead”), reflects the immense power and influence that drug traffickers wield, even over governments and authorities.

Colombia, through the Cali and Medellín cartels, dominated the production and export of cocaine via a triangulation network that connected through Mexico or the Caribbean, with the final destination being the United States, where the Reagan administration (1981–1989) intensified the War on Drugs, focusing on criminal repression rather than public health.

The Reagan’s War on Drugs was characterized for setting aggressive policies and legislative changes in the 1980s which increased the law enforcement and the punishment, as a consequence the prison penalties for drug crimes skyrocketed from 50,000 in 1980 to more than 400,000 by 1997 (HISTORY.com Editors 2017)

Mexican cartels consolidation and Mexico’s transition to a consumer nation

Around the same time, on the international arena, following the fragmentation of the Guadalajara Cartel in the 1980s, the emergence of new Mexican cartels — the Sinaloa Cartel, Gulf Cartel, Tijuana Cartel, and Juárez Cartel — combined with the downfall of Colombia’s Cali and Medellín cartels in the mid-1990s, catapulted Mexican cartels into prominence. They seized control of trafficking routes and diversified their operations, thus consolidating their role in the global drug market.

Later, the September 11, 2001, attacks altered U.S. security policy, affecting border transit, increasing security measures, and tightening inspections along the southern border with Mexico (Rudolph, 2023) — one of the main drug distribution routes into the United States. Although some studies suggest that U.S. security policies at land ports of entry had only marginal pre- and post-9/11 effects (Ramírez Partida, 2014), in reality, these measures significantly impacted Mexico more than the US.

Mexico transitioned from being primarily a producer, distributor, and transit country for drugs to also becoming a consumer nation. In 2002, more than 260,000 people were reported to use cocaine, whereas today the number exceeds 1.7 million addicts, according to data from the federal Secretariat of Public Security (Alzaga, 2010). Likewise, the ENCODAT 2016–2017 survey shows that the percentage of Mexican adolescents who had consumed some type of drug increased from 1.6% in 2001 to 6.4% in 2016 (REDIM, 2025).

By disrupting one of the main drug distribution routes to the United States, the situation led to drugs being redistributed and sold within Mexican territory. This, combined with the country’s social and economic conditions, facilitated the recruitment of young people by organized crime groups (Becerra-Acosta, 2010) for the domestic distribution of drugs.

Mexico and the Contemporary War on Drug Trafficking

The escalation of violence caused by the power struggle among Mexican cartels became so critical that President Felipe Calderón (2006–2012) declared an open war against organized crime on December 10, 2006 (Herrera Beltrán, 2006). His strategy involved deploying the armed forces throughout Mexican territory, as well as obtaining financial aid, training, and intelligence through the Mérida Initiative from the United States to support the fight against drug trafficking and organized crime in Mexico and Central America (Embassy of the United States in Mexico, 2011).

His successor, Enrique Peña Nieto (2012–2018), shifted the focus toward prevention and civil protection, although he continued the militarization process and the transformation of police institutions (BBC News, 2012).

The strategies of Calderón and Peña Nieto — often grouped together — while questioned and criticized (Morales Oyarvide, 2011), achieved significant arrests, including figures such as “La Barbie,” “La Tuta,” “El Menchito,” “El Chapo,” “El Marro,” and “El Ratón.” They also eliminated key figures like Arturo Beltrán Leyva, Ignacio Coronel Villarreal, Antonio Cárdenas Guillén, Heriberto Lazcano Lazcano, and Nazario Moreno González.

Later, during the presidency of Andrés Manuel López Obrador (2018–2024), the strategy shifted once again toward a stance of “hugs, not bullets,” showing clear signs of passivity that allowed cartel expansion (Fernández-Montesino, 2025). His successor, Claudia Sheinbaum (2024–2030), on the other hand, has navigated both internal and external pressures (particularly from the United States), seeking to balance intelligence, coordination, and attention to structural causes (Pardo, 2024), although continued militarization suggests a hybrid strategy remains in place.

Fentanyl and synthetic drugs: The future of drug trafficking

The president of the International Narcotics Control Board (INCB), Jallal Toufiq, said that “the illicit drug industry represents a major global public health threat with potentially disastrous consequences for humankind.” In addition, the 2024 INCB Annual Report found that illicit synthetic drugs are spreading and consumption is increasing, moreover, these could overtake some plant-based drugs in the future. (International Narcotics Control Board 2025)

The press release before mentioned also points out that Africa, Middle East, East and Southeast Asia and the Pacific drug markets are increasing, while production in Central America, Peru, Colombia and the Caribbean keeps on developing. On the other hand, the opioid crisis (fentanyl) remains a serious problem for North America and the cocaine keeps affecting Europe with a spillover Africa. (International Narcotics Control Board 2025).

The fentanyl crisis in North America is well documented. Data show an increase of 540% in overdose deaths between 2013 and 2016 (Katz 2017), with 20,100 deaths in the USA, while by 2023, the number increase to 72,776 deaths (USA Facts 2025). On the other hand, Canada has reported 53,821 deaths between January 2016 and March 2025 (Government of Canada 2025), while Mexico reported only 114 deaths from 2013 to 2023 (Observatorio Mexicano de Salud Mental y Adicciones 2024).

These figures reveal not only the unequal regional impact of the synthetic opioid crisis but also the ongoing adaptation of organized crime networks that sustain and expand these markets.

Evolution and Diversification of Organized Crime

The phenomenon of adaptation, evolution, and diversification of new illicit markets is not an isolated issue. Experts such as Farah & Zeballos (2025) describe this in their framework Waves of Transnational Crime (COT).

The first wave is represented by Pablo Escobar and the Medellín Cartel, pioneers in moving tons of cocaine to the U.S. market through Caribbean routes. The second wave is represented by the Cali Cartel, which perfected the model and expanded trafficking routes through Central America and Mexico — still focusing on one product (cocaine) for one main market (the United States).

The third wave is characterized by the criminalization of criminal structures, the use of armed groups (such as the FARC in Colombia), and the use of illicit production and trafficking as instruments of state policy, with clear effects on public policy functioning. At this stage, there is product diversification, with the main market remaining the U.S., but expansion reaching Europe (Farah & Zeballos, 2025).

Finally, the fourth wave — the current stage — is defined by total diversification, a shift toward synthetic drugs, and global expansion, involving extra-regional groups (Italian, Turkish, Albanian, and Japanese mafias), where many operations function “under government protection.”

This fourth wave offers clear examples of collusion between criminal and political spheres, which is not new. However, the arrest of Genaro García Luna (Secretary of Public Security under Calderón), the links between high-profile Mexican politicians and money laundering or fuel trafficking (Unidad de Investigación Aplicada de MCCI, 2025), and even Trump’s statements claiming that “Mexico is largely governed by cartels” (DW, 2025) reveal a reality in which drug trafficking and criminal organizations are no longer merely producers and distributors of illicit substances. Today, they possess the power and capacity to establish parallel governance systems, exercise territorial control, infiltrate institutions and local economies, and even replace core state functions (Farah & Zeballos, 2025).

Future Perspectives and Challenges

Currently, drug trafficking and organized crime represent structural threats. It is well known and widely studied what drug trafficking means for public security and health, but it has now also become a threat to politics, democracy, and the rule of law.

With divided opinions, many analysts argue that the war on drugs has failed — in addition to being costly and, in many cases, counterproductive (Thomson, 2016). Punitive strategies have generated more violence without truly addressing the social causes behind the phenomenon (Morales Oyarvide, 2011).

In this context, a paradigm shift is necessary: drug trafficking should not be approached solely as a security issue, but also as a public health and social development problem. Drug use has been a historical constant, and its total eradication is unrealistic. The key lies in harm-reduction policies, international cooperation, and inclusive economic development.

Moreover, organized crime demonstrates adaptive resilience, making its eradication difficult — especially given that its operational capacities are so diversified, it maintains alliances with groups worldwide, and globalization and new technologies continually help it reinvent itself. Furthermore, even political and economic tensions among the United States, Mexico, Canada, and China are now intertwined with the trade of synthetic drugs — particularly fentanyl —, revealing the geopolitical magnitude of the problem (Pierson, 2024).

Conclusion

In summary, drug trafficking has ceased to be a marginal activity and has become a transnational structure capable of influencing politics, the economy, and society. Its persistence can be explained not only by the profitability of the business but also by social inequality, institutional corruption, and sustained global demand.

History demonstrates that repression has not eradicated the problem but rather transformed it. Today, it is essential to rethink drug policies from a comprehensive approach that integrates security, public health, education, and international cooperation. Only through a multidimensional strategy will it be possible to contain a phenomenon that — more than an illicit economy — constitutes a global form of parallel governance that challenges the very foundations of the modern state.

Notes

[1] Miguel Ángel Félix Gallardo, also known as “El Jefe de Jefes” (“The Boss of Bosses”), “El Padrino” (“The Godfather”), or “The Drug Czar”, was one of the founders of the Guadalajara Cartel.

 [2] Amado Carrillo Fuentes, known as “El Señor de los Cielos” (“The Lord of the Skies”), was the former leader of the Juárez Cartel.

 [3] Pablo Escobar was the founder and former leader of the Medellín Cartel.

 [4] Carlos Lehder was the co-founder of the Medellín Cartel.

 [5] Griselda Blanco, known as “The Black Widow,” “The Cocaine Queen,” or “La Patrona” (“The Boss”), was a founder of the Medellín Cartel.

 [6] Rafael Caro Quintero, known as “El Narco de Narcos” (“The Drug Lord of Drug Lords”), was one of the founders of the Guadalajara Cartel.

 [7] Joaquín Guzmán Loera, known as “El Chapo,” was the former leader of the Sinaloa Cartel.

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