A crew chief assigned to the 335th Aircraft Maintenance Unit, Seymour Johnson Air Force Base, North Carolina, waits to marshal an F-15E Strike Eagle during Exercise Red Flag 20-3 at Nellis Air Force Base, Nev., Aug. 3, 2020. Former Tactical Air Command Gen. Robert Dixon established Red Flag in 1975 to better prepare Airmen for combat missions. (U.S. Air Force photo by Senior Airman Jacob Derry)