Members of Mara Salvatrucha are being trained by the Zetas in Mexico.
According to these police sources the young gangsters were being skilled in light weapons tactics by former Kaibiles, the notorious Guatemalan special forces counterpart to the Mexican GAFE which produced the original Los Zetas cadre.
This shouldn’t be much of a surprise considering the longterm alliance between rogue Kaibiles and the Zetas, one that dates back to the late 90s when they were being schooled together in advanced special operations skills at Ft Bragg, Ft Huachuca and Ft Benning.
This was when they were cops. They then went rogue, split off, and formed drug cartels. These are not just gangs, but rather extremely violent, well-armed, and highly sophisticated crime syndicates. Mara, in particular, is known for their expertise in money-laundering and trans-national ties.