BUENAVISTA TOMATLÁN, Mexico – The Mexican Army patrolled the streets of the western state of Michoacán on May 22 to improve security in a region tormented by violent drug cartels. About 4,000 army soldiers and marines and 1,000 Federal Police Officers have been deployed to the state, but they’ll leave once security has improved and the state government can hold its own. (Alfredo Estrella/AFP)