The Thunderbirds fly over the crowd in their Delta Formation during the 2015 Wings Over Wayne Air Show and Open House, May 17, 2015, at Seymour Johnson Air Force Base, N.C. As the Air Force’s premiere demonstration team, the Thunderbirds perform formation flying and solo routines in specially-marked F-16 Fighting Falcons. (U.S. Air Force photo/Airman Shawna L. Keyes)