" with simultaneous wars in Baja, Tamaulipas, and now Michoacán. Keller has to admit that the violence is unprecedented. Even at the height (the depth?) of Barrera’s war against Güero Méndez, back in the ’90s, the fighting was sporadic—brief sudden peaks of violence—not a daily event. And not spread across three broad areas of the country, with multiple and interconnected antagonists. The Alliance fighting Teo Solorzano in Baja. The Alliance fighting the CDG/Zetas in Tamaulipas. "

― Don Winslow , The Cartel (Power of the Dog #2)