U.S. Air Force air commandos assigned to the 321st Special Tactics Squadron on RAF Mildenhall perform an airlift on a simulated victim during an exercise March 4, 2015, on Sculthorpe, England. Special tactics Airmen are highly trained in combat search and rescue operations which keep them prepared for any hostile environments they may encounter. (U.S. Air Force photo by Senior Airman Victoria H. Taylor/Released)