simulated missile attack
Tech. Sgt. Celso Aguilar Moreno, 51st Civil Engineer Squadron, rests as he prepares to take off his gear after clearing the base passenger terminal May 6 during a simulated missile attack scenario on Osan Air Base, Republic of Korea. The scenario caused a fire in the building and turned into a mass casualty event. (U.S. Air Force photo by Senior Airman David Owsianka)