U.S. Air Force Technical Sgt. Korey Barber, left, crew chief, and Airman 1st Class Cormac Miller, right, hydraulic apprentice, both assigned to the 340th Expeditionary Aircraft Maintenance Unit, find a bit of shade beneath the tail of a KC-135 Stratotanker as they wait for final preparations prior to launching the aircraft from Al Udeid, Air Base, Qatar, July 7, 2017. The members of the 340th and 22nd EAMUs face minute-by-minute challenges in the sweltering heat on the runway as they work to keep a fleet of KC-135 Stratotankers ready to fly. (U.S. Air National Guard photo by Tech. Sgt. Bradly A. Schneider/Released)