 The Juárez Cartel controls one of the primary transportation routes for billions of dollars' worth of illegal drug shipments annually entering the United States from Mexico.Since 2007, the Juárez Cartel has been locked in a vicious battle with its former partner, the Sinaloa Cartel, for control of Ciudad Juárez.La Línea is a group of Mexican drug traffickers and corrupt Juárez and Chihuahua state police officers who work as the armed wing of the Juárez Cartel.