The United States Air Force Air Demonstration Squadron "Thunderbirds" perform during the Grissom Air and Space Expo, Sept. 7, 2019, at Grissom Air Reserve Base, Ind. The Thunderbirds perform at more than 30 show sites each year, highlighting the pride, precision and professionalism of the Air Force. (U.S. Air Force photo by Senior Airman Andrew D. Sarver)
Lt. Col. (Dr.) Noel Colls, United States Air Force Air Demonstration Squadron "Thunderbirds" flight doctor, presents a gift to an Army Air Corps WWII veteran at the Grissom Air and Space Expo, Sept. 7, 2019, at Grissom Air Reserve Base, Ind. The WWII veteran recited the oath of enlistment to over 50 enlistees during a ceremony before the Thunderbirds performed. (U.S. Air Force photo by Senior Airman Andrew D. Sarver)
