Lt. Col. Jason Heard, U.S. Air Force Air Demonstration Squadron commander, waves to the audience during the 2017 JBA Air Show: America’s Air and Space Expo at Joint Base Andrews, Md., Sept. 15, 2017. In addition to the Thunderbirds, the air show featured a variety of aerial demonstrations, including performances by Army Golden Knights and the Air Force F-22 Demonstration Team. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)