U.S. Air Force Staff Sgt. Christopher Pridgen salutes an F-16 Fighting Falcon pilot Jan. 30, 2015, during a flying training deployment at Souda Bay, Greece. Crew chiefs perform pre-flight and secondary inspections of the aircraft before pilots taxi the aircraft to the flightline for takeoff. Pridgen is a crew chief assigned to the 52nd Expeditionary Aircraft Maintenance Squadron and the pilot is assigned to the 480th Expeditionary Fighter Squadron. (U.S. Air Force photo/Staff Sgt. Joe W. McFadden)