Capt. Doug Mayo, a 555th Expeditionary Fighter Squadron F-16 Fighting Falcon aircraft pilot, goes through preflight inspection with Staff Sgt. William Harris, a 455th Expeditionary Maintenance Squadron crew chief, before a combat sortie at Bagram Airfield, Afghanistan, June 8, 2015. The 455th EAMXS ensure Fighting Falcons on Bagram are prepared for flight and return them to a mission-ready state once they land. (U.S. Air Force photo/Tech. Sgt. Joseph Swafford)