Airman 1st Class Jaylin King, an aerospace propulsion apprentice assigned to the 28th Aircraft Maintenance Squadron, Ellsworth Air Force Base, S.D., performs maintenance on a grounded B-1B Lancer during Red Flag 17-1 on Nellis Air Force Base, Nev., Jan. 27, 2017. Aircraft and personnel deploy to Nellis AFB for Red Flag under the Air Expeditionary Force concept and make up the exercise’s ‘Blue” forces. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)