The Rise and Fall of the CJNG
When Nemesio Oseguera Cervantes, known as El Mencho, was killed in February 2026 during a military operation in Jalisco, the reaction across western Mexico was swift. Highways were blocked with burning vehicles. Armed men halted traffic and forced drivers from their cars. Airports were attacked and shut down. Within hours, multiple states were disrupted. The response made clear that this was not the death of a lone criminal actor. It was the removal of a component within a much larger system. His killing marked a tactical victory. Whether it marked a structural turning point in the war on cartels remains far less certain. For more than a decade, El Mencho led the Cártel Jalisco Nueva Generación, or CJNG, one of the two dominant Mexican transnational criminal organizations identified in the U.S. Drug Enforcement Administration’s National Drug Threat Assessments. By the time of his death, the U.S. State Department had offered up to ten million dollars for information leading to his capt...