U.S. Air Force Senior Airman Sharone Gray, a 113th Wing, District of Columbia Air National Guard crew chief, works inside the cockpit of an F-16 Fighting Falcon at Eielson Air Force Base, Alaska, April 27, 2015. The unit is preparing to participate in RED FLAG-Alaska 15-2 large-force employment training. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)