U.S. Air Force Staff Sgt. Jamall Fryer, 11th Aircraft Maintenance Unit crew chief, prepares for an early morning sortie at Nellis Air Force Base, Nevada, Dec. 11, 2018. Fryer, an active-duty Airman, served alongside Reserve Citizen Airman during the biannual Weapons School Integration exercise. The two components regularly work together as part of the total force integration model. (U.S. Air Force photo by Master Sgt. Ted Daigle)