Maintainers from the 20th Aircraft Maintenance Squadron, Shaw Air Force Base, S.C., change a tire on an F-16 CJ prior to a Red Flag 16-3 night training mission July 13, 2016 at Nellis AFB, Nev. Aircraft maintainers work through the night to ensure aircrews continue to receive an effective, but most of all safe, training experience. (U.S. Air Force photo by Senior Airman Joshua Kleinholz/Released)