A crowd of spectators watch the U.S. Air Force Thunderbirds as they perform, May 2, 2015, at Dyess Air Force Base, Texas. During the 2015 Dyess Big Country Airfest, more than 26,000 people came to watch acts such as The Wings of Blue, the U.S. Army Golden Knights and a joint force close air support exposition between B-1B Lancer, a UH-60A Blackhawk and an AH-64 Apache. (U.S. Air Force photo by Airman 1sr Class Alexander Guerrero/Released)