Air Force Chief of Staff Gen. Charles Q. Brown, Jr. returns a salute to Gen. Mark Kelly, commander of Air Combat Command, during a change of command ceremony at Joint Base Langley-Eustis, Va., Aug. 28, 2020. Kelly entered the Air Force in 1986, receiving his commission from the Air Force ROTC program at Southwest Texas State University and is also a command pilot with more than 6,000 flying hours, including more than 800 combat hours in fighter aircraft. (U.S. Air Force photo by Staff Sgt. Ericha Fitzgerald)