Sinaloa is considered Mexico’s most powerful drug trafficking organization, and its leader, Joaquin “El Chapo” Guzman, is the most wanted man in Mexico. The group’s domain stretches from the central west coast to the center north of the country (see map here), and it has steadily moved into the territory of other organizations. Its rivalry with the Juárez cartel has been the cause of much of the violence in border town Ciudad Juárez, which was the site of more than a quarter of the country’s total drug-related casualties in 2010.
As many other trafficking organizations have fragmented in recent years, Sinaloa has gained influence, according to an April 2011 STRATFOR report on Mexico’s drug war. Mr. Guzman gained influence himself as leaders of Sinaloa’s allies and internal factions took hits from Mexican President Felipe Calderón’s crackdown on the trafficking organizations.
A brother of the former leader of Beltrán Leyva Organization (BLO), a former ally of Sinaloa, accused Guzman of betraying BLO’s leaders to the government to minimize challenges to his leadership, according to STRATFOR, the global intelligence firm.
Sinaloa’s imperviousness to Calderon’s efforts have led the Mexican government to focus on taking down the smaller, weaker organizations and hoping that Sinaloa would act to reduce violence on their own since it hinders trafficking efforts.