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Made-in-America Guns Are Fueling Death and Destruction in Mexico

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28.02.2026

Special Investigations

Press Freedom Defense Fund

Made-in-America Guns Are Fueling Death and Destruction in Mexico

The killing of drug cartel kingpin El Mencho has led to retaliatory violence in Mexico — much of it carried out with American-made guns.

Alain Stephens is an investigative reporter covering gun violence, arms trafficking, and federal law enforcement.

The images from Mexico looked like a modern global battlefield. Security forces engaged in torrents of gunfire on the beach. Commercial flights into Puerto Vallarta promptly canceled as military helicopters took up airspace to run strafing fire on narco positions below. Highways filled with stalled traffic as buses burned along major routes, the smoke sending visible plumes across the city.

The torrent of violence followed a Mexican military operation Sunday that killed Nemesio Rubén Oseguera Cervantes, known as “El Mencho,” the leader of the Jalisco New Generation Cartel, or CJNG, one of the most powerful criminal organizations in the hemisphere. Retaliation moved quickly. Cartel organizations launched an onslaught of armed convoys and road blocks that torched buildings and gas stations in at least 20 states around the country, grinding an entire nation to a halt. In the violence, at least 70 people have died, 25 of which were Mexican military forces. 

Trump Demanded El Mencho’s Head. Mexicans Are Paying the Price.

In an after-action press conference, Mexican authorities were quick to frame the operation as a strategic success — a symbol of cross-border intelligence cooperation and another blow against organized crime.

But when reporters asked about the weapons recovered during the raid targeting El Mencho, Mexican Defense Minister Ricardo Trevilla Trejo offered a more unvarnished assessment. “Eighty percent are of North American origin,” he said plainly, roughly the same proportion of the nearly 23,000 firearms Trejo said the Mexican administration has confiscated since October 1.

The U.S. has helped create cartels more heavily armed than at any point in their history.

The U.S. has helped create cartels more heavily armed than at any point in their history.

Narco organizations have evolved from illicit trafficking networks into heavily armed forces capable of blunting military grade law enforcement across entire regions. That escalation is not an anomaly. The United States — with its vast civilian gun market, weak barriers to arms trafficking, and law enforcement gaze fixed largely northbound — has helped create cartels more heavily armed than at any point in their history, a transformation that has destabilized Mexico, cost billions of dollars, and claimed thousands of lives on both sides of the border.

And while America watches from next door — calmly stirring its tea as cartel violence becomes political currency for tougher borders and even fantasies of military intervention — it has largely avoided confronting its own role in arming its supposed adversaries to the hilt.

There are only two highly regulated legal gun stores in the whole of Mexico, so it is hardly controversial or new within law enforcement circles that America has long been an armory of illicit firearms for Mexican organized crime. In 2006, after the Mexican government began deploying soldiers to combat organized crime, cartel fighters began sourcing American firepower to near parity with the Mexican military. This coincided with a liberating time for American gun owners after the U.S. assault weapons ban lapsed in 2004. As a 2013 Cambridge research report........

© The Intercept