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It is still unclear exactly what inspired such brutality. Many point to the influence of the Guatemalan Kaibiles working in the Zetas. In the Guatemalan civil war, troops cut off heads of captured rebels in front of villagers to terrify them from joining a leftist insurgency. Turning into mercenaries in Mexico, the Kaibiles might have reprised their trusted tactic to terrify enemies of the cartel. Others point to the influence of Al Qaeda decapitation videos from the Middle East, which were shown in full on some Mexican TV channels. Some anthropologists even point to the pre-Colombian use of beheadings and the way Mayans used them to show complete domination of their enemies.
The Zetas were not thinking like gangsters, but like a paramilitary group controlling territory. Their new way of fighting rapidly spread through the Mexican Drug War. In September the same year, La Familia gang—working with the Zetas in Michoacán state—rolled five human heads onto a disco dance floor. By the end of 2006, there had been dozens of decapitations. Over the next years, there were hundreds.
Gangsters throughout Mexico also copied the Zetas’ paramilitary way of organizing. Sinaloans created their own cells of combatants with heavy weaponry and combat fatigues. They had to fight fire with fire. “The Beard” Beltrán Leyva led particularly well-armed death squads. One was later busted in a residential house in Mexico City. They had twenty automatic rifles, ten pistols, twelve M4 grenade launchers, and flak jackets that even had their own logo— FEDA—an acronym for Fuerzas Especiales de Arturo, or Arturo’s Special Forces.
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