The U.S. Air Force Thunderbirds’ air demonstration team flies in a mirror formation May 2, 2015, at Dyess Air Force Base, Texas. The Thunderbirds performed at the 2015 Dyess Big Country Airfest, along with other demonstration teams such as the Army Golden Knights parachute team, Wings of Blue parachute team and Vietnam Era Airpower. (U.S. Air Force photo by Airman 1st Class Kedesha Pennant/Released)