[Gizmo_S13]

The Zetas were originally started by the Mexican government to combat drug cartels but the drug cartel leader Chapo Guzman got ahold of the Zeta leader and told him he'd pay them 10 times more than the Mexican government does. If you think about it, that move was a smart one considering you get paid next to nothing in Mexico. So what started happening was that since these guys were trained in military tactics they started controlling a lot of the drug trade and a lot of gangs were losing money. So these gangs all united and started a organization called Mata Zetas and since then they have been battling out.