U.S. Air Force Capt. Scott Cromer, 64th Aggressor Squadron pilot, prepares to dawn his gear before a Red Flag mission at Nellis Air Force Base, Nevada, July 28, 2021. The 64th AGRS Airmen go through a lengthy certification process where they gain a comprehensive understanding of U.S. adversaries and their tactics. (U.S. Air Force photo by Tech. Sgt. Robert Hicks)