Tech. Sgt. Adam Leslie, 455th Expeditionary Security Forces Group Military Working Dog kennel master, deployed from Langley Air Force Base, Va., and MWD Ruth perform controlled aggression training at Bagram Airfield, Afghanistan, April 28, 2013. Controlled aggression training creates scenarios in which the MWD team responds to a suspect or unidentified individual. (U.S. Air Force photo/Senior Airman Chris Willis/Released)