An F-16 Fighting Falcon from the 16th Weapons Squadronl, Nellis Air Force Base, Nev., takes off for a US Air Force Weapons School training exercise June 8, 2017. The F-16 is the current aircraft flown by the Thunderbirds, the U.S. Air Force Air Demonstration Squadron. (U.S. Air Force photo by Airman 1st Class Andrew D. Sarver/Released)