In the past two days , AG resulted in arrests in 15 states . Officials : `` This unprecedented , coordinated U.S. law enforcement action -- the largest ever undertaken against a Mexican drug cartel -- has dealt a significant blow to La Familia 's supply chain of illegal drugs , weapons and cash flowing between Mexico and the United States , '' 4-year operation produced nearly 1,200 arrests , 11.7 tons of drugs seized . Crackdown says operation targeted Project Coronado , a top Michoacan drug trafficking group . Law enforcement official : Crackdown will affect methamphetamine market in U.S .
In the past two days , AG resulted in arrests in 15 states . Officials : 4-year operation produced nearly 1,200 arrests , 11.7 tons of drugs seized . Crackdown says operation targeted Project Coronado , a top Michoacan drug trafficking group . Law enforcement official : Crackdown will affect methamphetamine market in U.S .