sentences:  Over several decades, the cartels had bribed police commanders and top politicians; and often riddled with corruption, state authorities would not only fail to cooperate with other authorities in distinct federal levels, but would actively protect the cartels and their leaders.With limited options available, Calderón turned to the Mexican Armed Forces, which, because of its limited involvement in acting against the cartels, remained relatively immune to corruption and organized crime infiltration.He then moved the military to parts of Mexico most plagued by drug-violence to target, capture, and – if necessary – kill the leaders of the drug trafficking organizations.