Airmen assigned to the 23d Aircraft Maintenance Squadron assume prone position in a simulated bunker during exercise FT 19-04, April 17, 2019, at Moody Air Force Base, Ga. The five-day exercise will give base personnel an opportunity to experience contingency operations in a contested and degraded combat environment. During the exercise, personnel will be evaluated on how well they defend and recover the base from ground-opposition forces, as well as mortar and missile attacks, while in mission oriented protective posture gear. (U.S. Air Force photo by Airman 1st Class Taryn Butler)