By 2010, the criminal landscape in Mexico differed greatly from that in 1989. Numerous crime groups, some with small but critical niches, controlled drug trafficking operations in Mexico. Even so, a few cohesive crime groups still dominated the Mexican drug trade, particularly the Juarez cartel, the Tijuana cartel, the Gulf cartel and the Sinaloa Federation. Each group sought to expand its share over the drug trade, hoping to achieve the pre-eminence of their collective predecessor, leading to violent turf wars. Each group, however, faced internal divisions, leading to further Balkanization in parallel to the turf wars.

2010 marked a rapid acceleration in crime group decentralization, with each of the four dominant groups suffering a series of internal splits. This phenomenon also afflicted their eventual successors, giving rise to the present exceptionally complex map of crime groups. As Stratfor highlighted in its April 2013 cartel quarterly update, the trend of Balkanization will not likely end even if specific crime groups such as Los Zetas momentarily defy it by continuing to expand. Now in 2015, this trend has created an organized criminal landscape where it is no longer sufficient to monitor Mexican organized crime by focusing on individual groups. Instead, one must focus on the regional umbrellas that lead the vast majority of Mexican crime groups. We have therefore had to change the way we think and write about Mexican organized criminal networks, a change made visible in the radical alterations we have made to our popular cartel map.

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