Seven months after the Mexican military killed cartel kingpin Nemesio "El Mencho" Oseguera in a raid that triggered nationwide violence, the state of Jalisco remains caught in a brutal succession battle that is testing Mexico's security forces and threatening billions in foreign investment.

The February 22 operation in Tapalpa, a mountain town south of Guadalajara, eliminated the most wanted leader of the Jalisco New Generation Cartel (CJNG)—but it also unleashed chaos. Within hours, cartel operatives set up roadblocks across Jalisco, torching vehicles and shutting down highways in Puerto Vallarta, Guadalajara, and smaller cities.

The so-called "narcobloqueos" forced school closures throughout the region and sent Governor Pablo Lemus scrambling to activate a Code Red alert. Banks, shops, and public transportation ground to a halt as armed groups demonstrated their ability to paralyze the state's economic heart in retaliation for their leader's death.

Power Vacuum Fuels Ongoing Instability

Intelligence officials believe the killing was made possible by a tip related to El Mencho's personal life—a rare vulnerability in the security apparatus of a cartel known for its brutal efficiency and technological sophistication. But while the raid succeeded tactically, it left the CJNG without a clear successor.

"The closest recent example is the internal war within the Sinaloa Cartel after the 2024 capture of Ismael 'El Mayo' Zambada," CNN reported in the aftermath. That power struggle led to months of bloodshed across multiple Mexican states before a fragile hierarchy emerged.

The CJNG's operational capacity remains largely intact despite El Mencho's death. Middle-tier commanders still control smuggling routes into the United States and local cells continue extracting revenue from extortion, kidnapping, and drug trafficking. What they lack is a unifying figure who commanded the fear and loyalty El Mencho built over decades.

Foreign Investors Reassess Risk Calculations

The security crisis comes at a critical moment for Jalisco's economy. Guadalajara has emerged as a top destination for nearshoring projects—companies relocating manufacturing from Asia to North America to reduce supply chain risk. IBM, Siemens, Motorola, and Hewlett-Packard have long-standing operations in the region, and foreign direct investment hit record levels in recent years.

But a September 8 Forbes analysis warned that "while the city itself is generally safe, it's the base for the violent CJNG cartel" and executives must navigate "significant organized crime risks." Highway robberies, kidnappings of business leaders, and threats against companies that refuse to pay extortion have all increased since El Mencho's death.

"For Mexico to capitalize on the current investment trend of nearshoring," analysts at Global Americans wrote, "local, state, and national leaders will need to coordinate with industrial business chambers to effectively address Mexico's longstanding and alarming security problems."

U.S. Implications and Border Security

The instability has ripple effects across the U.S.-Mexico border. The CJNG remains one of the primary suppliers of fentanyl and methamphetamine to American markets. Succession battles typically disrupt trafficking patterns—but they also incentivize factions to ramp up production and sales to finance their power grabs.

U.S. law enforcement agencies are monitoring the situation closely, particularly as the midterm elections approach and border security reemerges as a campaign flashpoint. The $10 million bounty that had been on El Mencho's head demonstrated Washington's prioritization of dismantling the CJNG leadership—but seven months later, that strategy's effectiveness remains unclear.

Mexican President Claudia Sheinbaum inherited the security crisis from her predecessor and has pledged to continue military operations against cartels while addressing root causes like poverty and corruption. Yet experts note that decapitation strikes—killing or capturing top leaders—often create more violence in the short term, even if they weaken cartels over time.

For Jalisco residents, the succession battle means living under the threat of sudden violence, extortion demands, and the possibility of being caught in crossfire between rival factions or between cartels and government forces. The state that should be a poster child for Mexico's economic transformation remains trapped in a security nightmare with no clear end in sight.