U.S. Air Force Gen. Herbert “Hawk” Carlisle, commander of Air Combat Command, as he prepares to takeoff on his final flight at Joint Base Langley-Eustis, Va., March 9, 2017. Carlisle commanded ACC Airmen who are the primary providers of air combat forces to America's warfighting commanders. (U.S. Air Force photo/Staff Sgt. Natasha Stannard)