BUENOS AIRES — In a move announced just hours ago, Argentina’s government formally designated the Jalisco New Generation Cartel—the CJNG—as a terrorist organization, adding one of Mexico’s most powerful and violent criminal networks to the same national registry that already lists Hamas, Iran’s Quds Force, and the Venezuelan Cartel de los Soles.
The designation, announced Thursday by the office of President Javier Milei, places the CJNG in Argentina’s Public Registry of Persons and Entities Linked to Acts of Terrorism and Its Financing—known by its Spanish acronym RePeT—aligning the South American country more closely with the policy of its ally, the United States.
According to the official communiqué, the decision is grounded in official reports documenting “transnational illicit activities of a criminal nature, as well as links with other terrorist organizations.” The move enables immediate legal consequences: asset freezes, financial sanctions, and operational restrictions against any CJNG-linked individuals or entities operating within Argentine territory or its financial system.
The announcement arrives at a moment of significant instability within the CJNG itself. On February 22, 2026, El Mencho—the cartel’s founder and longtime leader, Nemesio Oseguera Cervantes—was killed by the Mexican military in Tapalpa, Jalisco, in an operation supported by U.S. intelligence. His death left no clear successor, with his son Rubén Oseguera González, known as El Menchito, already imprisoned in the United States.
The cartel’s leadership structure is now in a period of acute flux—and Argentina is designating it at precisely the moment it is most dangerous to provoke.
What the CJNG Actually Is
To understand why this designation matters, it helps to understand the scale of what Argentina has just formally classified as a terrorist network. The CJNG split from the Sinaloa Cartel in 2010 and has since expanded across Mexico and internationally, becoming responsible for a significant portion of fentanyl and other illicit drug flows into the United States and around the world. It uses a franchise model—affiliation agreements with smaller local cartels—to facilitate expansion outside its core strongholds in Jalisco, Nayarit, and Colima.
Its criminal activities generate billions of dollars annually through drug trafficking to the United States, Australia, Canada, and countries across Africa, Asia, Central and South America, and Europe. Argentina’s government argues the CJNG is “one of the most powerful drug trafficking organizations in the world,” with a confirmed presence in at least 40 countries, including Argentine territory itself.
This is not merely a diplomatic posture toward Mexico. The CJNG has an operational footprint in South America, and Argentina’s designation has direct implications for the region’s evolving security landscape.
The South American Connection
The U.S. Treasury designated Los Lobos a terrorist organization in 2024 specifically because of its operational ties to the CJNG, noting that the Mexican cartel supplied the Ecuadorian gang with weapons, training, and strategic support that allowed it to eclipse rivals and consolidate control over cocaine transit routes on the Pacific coast.
Following El Mencho’s death, analysts warned of a domino effect across Latin American countries that are part of the CJNG’s cocaine production, transit, and export network—particularly Ecuador and Colombia. Former Ecuadorian Army intelligence chief Mario Pazmiño told CNN that competition over drug trafficking routes and control of ports could intensify as the rival Sinaloa Cartel seeks to reconfigure territories previously held by CJNG-affiliated gangs. “If these organizations worked for the CJNG and received support from Mexico, Sinaloa will automatically try to take over those spaces,” Pazmiño said.
That succession battle is already being felt. In Argentina itself, the CJNG has established operations in Buenos Aires and other urban centers, using Argentina’s financial system and ports as transit points for drug shipments and money laundering.
The RePeT designation now gives Argentine authorities legal tools to target those networks that they previously lacked.
Milei's Pattern—and Washington’s Blueprint
Today’s designation is not an isolated act. It is the latest step in a systematic realignment of Argentina’s security posture under Milei that mirrors, almost precisely, the approach taken by the Trump administration in Washington.
Milei’s government has previously designated Hamas, Iran’s Quds Force, the Venezuelan Cartel de los Soles, and the Muslim Brotherhood chapters in Egypt, Lebanon, and Jordan as terrorist organizations—each time following a similar move by the United States by days or weeks.
The CJNG follows that pattern: the U.S. State Department designated the CJNG as a foreign terrorist organization in February 2025, with the U.S. Treasury’s Office of Foreign Assets Control following with targeted sanctions against CJNG leadership in June 2025. Argentina’s designation arrives roughly 13 months later, at a moment when the cartel is structurally weakened but operationally unpredictable.
The decision was made in coordination between Argentina’s Foreign Ministry, Ministry of National Security, Ministry of Justice, and the State Intelligence Secretariat—an institutional breadth that signals the designation is intended as an operational tool, not just a political statement.
What It Means for Regional Security
The broader implications for South American security are significant and cut in several directions simultaneously. First, it strengthens the legal architecture available to Argentina’s allies. When a country designates an organization as terrorist, it triggers obligations and tools under international anti-money laundering and counter-financing of terrorism frameworks—obligations that make it harder for CJNG-linked entities to move money through Argentine banks, port logistics companies, or financial intermediaries. Given that Buenos Aires is one of Latin America’s major financial centers, this matters.
Second, it sends a signal to Argentina’s neighbors—particularly Brazil, which has been conspicuously absent from the Shield of the Americas coalition and has not followed Washington’s lead on cartel designations—that Milei intends to use Argentina’s security policy as a tool of regional alignment with Washington rather than regional consensus.
Third, and most importantly for South America’s immediate security situation, the CJNG under El Mencho had diversified far beyond drug trafficking into illegal gold mining, human trafficking, extortion, and financial fraud. That diversification has deep roots in the Andean region, where porous borders, weak institutions, and illegal mining economies give transnational criminal organizations like the CJNG structural advantages that no terrorism designation alone can address.
The designation gives Argentina new tools. It does not give the region new solutions. Security analysts warn that CJNG’s death of El Mencho could also trigger a shift in the balance of power along Colombia’s borders with Venezuela and Ecuador, where drugs are trafficked, as rival factions and competing cartels renegotiate territorial control in the power vacuum.
Whether Argentina’s designation accelerates international cooperation to manage that vacuum—or simply adds a legal label to a crisis already in motion—is the question regional governments will be watching closely.
What is clear is that Milei has placed Argentina firmly in the camp of nations that treat transnational organized crime as a security threat equivalent to terrorism. In a region where that question is far from settled, that choice carries real weight.
Sociedad Media will continue to monitor Argentina’s security designations and their implications for organized crime dynamics across South America. Have a tip or a story connected to cartel activity in the region? Reach out to our team at info@sociedadmedia.com—we want to hear from you.
