Red Flags heartbeat: Core unit arrives at Nellis AFB
Airmen with the 1st Aircraft Maintenance Squadron prepare to taxi F-22 Raptors at Nellis Air Force Base, Nev., Jan. 18, 2017. The aircraft assigned to the 1st Fighter Wing from Joint Base Langley-Eustis, Va., and will conduct air combat training sorties with various aircraft, including the F-35A Lightning II during Red Flag 17-1. (U.S. Air Force photo/Staff Sgt. Natasha Stannard)