Airmen assigned to the 28th Aircraft Maintenance Squadron treat simulated patients with self-aid and buddy care on the flightline during the Phase II portion of an operational readiness exercise at Ellsworth Air Force Base, S.D., July 11, 2013. The intent of Phase II is to evaluate the wing’s ability to meet wartime and contingency tasks of employing forces, sustaining forces and maintaining the ability to survive and operate in a deployed location. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)