The Mexican Army has killed the leader of the Jalisco New Generation Cartel, a powerful thug named “El Mencho.” The cartel responded with wanton violence that brought the country to a standstill. Both Mexico and the United States deserve credit for fighting the war on drugs as if it were an actual war. And now it’s up to both to stay the course.

On Feb. 22, the Mexican military carried out a raid in the state of Jalisco. Aided by U.S. intelligence and reportedly trained by U.S. special forces, Mexican commandos killed Nemesio Oseguera Cervantes, nicknamed “El Mencho,” the leader of the Jalisco New Generation Cartel. The retaliation that followed was massive.