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Mexico Kills Top Drug Lord ‘El Mencho,’ Sparking Wave of Cartel Violence That Leaves Dozens Dead

GUADALAJARA, Mexico, February 24, 2026 — Mexican special forces have killed Nemesio Oseguera Cervantes, the notorious leader of the Jalisco New Generation Cartel, in a U.S.-backed raid that triggered widespread retaliatory violence across multiple states, leaving at least 73 people dead including 25 security personnel, authorities confirmed on February 23, 2026 .

The operation, codenamed after months of intelligence gathering, culminated on February 22 in the wooded highlands of Tapalpa, a municipality approximately two hours southwest of Guadalajara in Oseguera’s home state of Jalisco . The 59-year-old kingpin, better known as “El Mencho,” was wounded in a firefight with military forces and died while being airlifted to Mexico City for medical treatment .

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The killing of Mexico’s most wanted man represents the most significant blow against organized crime since the capture of Sinaloa cartel leaders Joaquín “El Chapo” Guzmán and Ismael “El Mayo” Zambada, both now imprisoned in the United States . But it has come at a steep price, unleashing a coordinated wave of cartel violence that paralyzed parts of the country and forced tourists to shelter in place .


The Operation: Intelligence-Led Raid

Mexican Defense Secretary Ricardo Trevilla detailed the operation at a press conference on Monday, explaining that authorities had tracked one of Oseguera’s romantic partners to his hideout in Tapalpa . The cartel leader and two bodyguards fled into a wooded area where they were seriously wounded in a gunfight with special forces .

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Three members of the armed forces were wounded and received medical treatment . Four cartel members died at the scene, while Oseguera and two others succumbed to their wounds during the medical evacuation flight . Two additional suspects were arrested, and authorities seized armored vehicles, rocket launchers capable of downing aircraft, and various other weapons .

Mexican President Claudia Sheinbaum emphasized that the operation was planned and executed entirely by Mexican forces, with the United States providing only supplementary intelligence . “All operations were carried out by federal forces. There was no participation by United States forces in the operation. What exists is extensive information sharing,” Sheinbaum told reporters .

The U.S. contribution included intelligence from Northern Command and INTERPOL, integrated with months of Mexican military intelligence gathering . General Trevilla noted that information about Oseguera’s inner circle came from Mexican sources, while U.S. intelligence provided “additional, very important information” that helped pinpoint the exact location .

The White House confirmed it provided intelligence support, with Press Secretary Karoline Leavitt posting that the Trump administration “commends and thanks the Mexican military for their cooperation and successful execution of this operation” .


The Kingpin: From Police Officer to Public Enemy

Nemesio Oseguera Cervantes, a former police officer, built the Jalisco New Generation Cartel (CJNG) into one of Mexico’s most powerful and violent criminal organizations since its founding around 2009 . Under his leadership, the cartel diversified from drug trafficking into fuel theft, extortion, human smuggling, and complex financial frauds .

The U.S. State Department had offered a $15 million reward for information leading to his capture, adding him to its most-wanted fugitives list in May 2016 . Mexico’s Attorney General’s Office had offered approximately $1.5 million for his capture in August 2018 .

In February 2025, the Trump administration designated CJNG as a foreign terrorist organization, citing its role in trafficking fentanyl, methamphetamine, and cocaine into the United States . The cartel pioneered the use of drones for attacks and was known for brazen assaults on government officials, including using rocket-propelled grenades against military helicopters .


Retaliatory Violence: Dozens Killed, Tourists Trapped

The cartel’s response to its leader’s death was swift and brutal. Security Secretary Omar García Harfuch reported that 25 members of the National Guard were killed in six separate attacks across the country . In total, authorities recorded 27 assaults against security forces .

At least 30 suspected cartel members were killed in Jalisco during security operations, with four more killed in the neighboring state of Michoacán . A prison guard and an agent from the state prosecutor’s office were also among the dead . Overall, authorities reported 34 suspected cartel members killed and 70 arrested .

The violence extended far beyond direct clashes. Cartel gunmen established more than 250 roadblocks across 20 states, burning vehicles and buses to paralyze transportation networks . Businesses were set ablaze, and residents were urged to remain indoors .

In Guadalajara, Mexico’s second-largest city and Jalisco’s capital, more than 1,000 tourists became stranded overnight at the city’s zoo when violence erupted . Families wrapped in blankets slept in buses as police guarded the area, unable to return to nearby states like Zacatecas and Michoacán . Zoo director Luis Soto Rendón said many had been trapped since Sunday morning, including small children and senior citizens .

The popular beach resort of Puerto Vallarta descended into chaos, with frightened tourists describing a “war zone” as plumes of dark smoke rose from around the bay . Multiple U.S. and Canadian airlines, including United, American, Southwest, Alaska, Air Canada, and WestJet, canceled dozens of flights to Puerto Vallarta, Guadalajara, and Manzanillo . Southwest turned back four flights already en route to Mexico .

A concert by U.S. singer Kali Uchis was suspended, and large public events were canceled across affected regions . Schools in multiple states suspended in-person classes as a precaution .


Government Response: Restoring Order

President Sheinbaum addressed the nation on Monday, urging calm and emphasizing that authorities had regained control of the situation . “It is peaceful, it is calm, and most importantly, we are working,” she said. “If any situation were to arise today, there is a control and command center, and all federal forces are coordinated. Most importantly, we are coordinated with all the states of the republic” .

The Defense Ministry deployed an additional 2,500 military troops to western states to bolster security . By Monday, authorities reported that all cartel roadblocks had been cleared .

Jalisco Governor Pablo Lemus Navarro issued a red alert and canceled in-person classes at schools statewide . The state, scheduled to host four World Cup games in 2026, canceled all events involving large crowds .

Mexico’s Attorney General’s Office confirmed Oseguera’s identity on Monday following forensic and DNA analysis of his body . His corpse arrived in Mexico City in a heavily guarded convoy of National Guard troops .


International Reaction: Warnings and Praise

The U.S. State Department urged American citizens in parts of Mexico to “shelter in place until further notice” due to ongoing security operations and related road blockages . The embassy in Mexico City announced that personnel in eight cities and in Michoacán would work remotely .

Canada issued travel warnings for Jalisco, Guerrero, and Michoacán states, citing “shootouts with security forces and explosions” . Guatemala announced it was reinforcing “strategic” sections of its frontier with Mexico following cross-border incursions by criminal groups in recent months .

Despite the violence, U.S. officials welcomed Oseguera’s demise. U.S. Deputy Secretary of State Christopher Landau, formerly ambassador to Mexico, called it “a great development for Mexico, the US, Latin America, and the world” . U.S. Ambassador Ron Johnson recognized the “success of the Mexican armed forces and their sacrifice,” adding that under Presidents Trump and Sheinbaum, “bilateral cooperation has reached unprecedented levels” .


Political Context: Pressure from Washington

The operation came amid intense pressure from the Trump administration for Mexico to demonstrate results against drug cartels, particularly regarding fentanyl trafficking . President Trump had repeatedly threatened to impose tariffs on Mexican exports or take unilateral military action if Mexico did not intensify its offensive .

Sheinbaum, who took office in October 2024, has adopted a more confrontational approach toward criminal groups than her predecessor . David Mora, Mexico analyst for the International Crisis Group, noted that the army had been “way more” combative against cartels since Sheinbaum assumed office, signaling to Washington that “we don’t need US troops on Mexican soil” .

The Mexican president has consistently vowed to uphold national sovereignty while strengthening cooperation with the United States .


Looking Forward: Risk of Cartel Fragmentation

Security experts warn that Oseguera’s death could lead to prolonged violence as factions within CJNG compete for control and rival cartels seek to exploit the power vacuum .

“There will definitely be skirmishes between the various factions, and these spasms of violence could last for years,” said Carlos Olivo, a former U.S. Drug Enforcement Administration assistant special agent in charge and CJNG expert .

David Mora of the International Crisis Group echoed this concern: “This might be a moment in which those other groups see that the cartel is weakened and want to seize the opportunity for them to expand control and to gain control over Cartel Jalisco in those states” .

For civilians like José Luis Ramírez, a 54-year-old therapist waiting in line at a Guadalajara pharmacy on Monday, daily life must continue despite the bloodshed. “We have to not think scared, but be cool-headed, like they say, and take things as they come,” he said .


By the Numbers

The full toll of the operation and its aftermath includes at least 73 total dead, comprising 25 National Guard personnel, 34 suspected cartel members, one soldier, one prison guard, one state prosecutor’s office agent, and others including civilians . More than 250 roadblocks were established across 20 states, with 27 recorded attacks on authorities . Security forces arrested 70 suspects . The U.S. had offered a $15 million reward, while Mexico’s reward stood at $1.5 million . The operation involved special forces tracking Oseguera through a romantic partner, with three soldiers wounded in the firefight . The aftermath saw 2,500 additional troops deployed to western states .


with inputs from
NYT: Mexican Forces Kill ‘El Mencho,’ Nation’s Most-Wanted Cartel Boss
LA Times: Mexican army kills ‘El Mencho’
Al Jazeera: The killing of Mexican drug lord El Mencho
BBC: Mexico’s most wanted drug lord ‘El Mencho’ killed
Reuters: Mexican military kills cartel boss ‘El Mencho’
AP: Mexican army kills leader of Jalisco New Generation Cartel
CNN Live: Mexico El Mencho killed – travel chaos

For broader context, see our in-depth analysis on Modern World Order Explained: Power, Alliances & Global Systems.

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