Staff Sgt. Troy Everson, an aircraft armament systems technician assigned to the 757th Aircraft Maintenance Squadron, prepares an F-15E Strike Eagle fighter jet for takeoff during Combat Archer 19-12 at Tyndall Air Force Base, Fla., Sept. 24, 2019. A new software on the F-15E aircraft was evaluated during this iteration of Combat Archer. (U.S. Air Force photo by Airman 1st Class Bailee A. Darbasie)