An Afghan Air Force security forces member provides perimeter security at the scene of a mass casualty exercise held at the 738th Air Expeditionary Advisory Group at Kandahar Air Wing, Kandahar, Afghanistan, Oct. 31, 2011. Although AAF security forces have begun patrols, teams will continue to train together in an effort to provide a safe environment for both AAF airmen and advisers assigned to the group. (U.S. Air Force photo/Senior Airman Corey Hook)