text: Calderón's administration When Felipe Calderón took office as president in 2006, there were roughly half a dozen drug cartels in Mexico. Each of the organizations were large and dominated huge parts of Mexico's territorial landscape, and operated internationally and overseas as well. When Calderón assumed the presidency, he realized that he could not rely on the federal police nor the intelligence agencies to restore order and crack down the logistics of the mafias. 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. Yet, the president understood that the military could not fight the cartels alone and needed cops to rely on for patrolling, collecting intelligence information, and gathering evidences necessary to prosecute drug traffickers.