A Marine stands guard during a cordon and search exercise.
A Marine with Company B, 1st Battalion, 6th Marine Regiment, 2nd Marine Division, stands guard during a cordon and search exercise at the military operations in urban terrain facility at Marine Corps Base Twenty-nine Palms, Calif., on May 30, 2011. The exercise included Afghan nationals who served as role-players and provided the Marines with a realistic training experience in preparation for their upcoming deployment to Afghanistan.