This stuff mostly followed after the zetas. It was a very deliberate strategy to compete in a hostile landscape that others eventually copied to survive.
It's notable that a lot of the Zetas came from a military special forces background, making it seem as if their extreme brutality was a strategic choice inculcated during their training.
It's notable that a lot of the Zetas came from a military special forces background, making it seem as if their extreme brutality was a strategic choice inculcated during their training.
https://ctc.westpoint.edu/a-profile-of-los-zetas-mexicos-sec...