Staff Sgt. Benjamin Taylor, 8th Expeditionary Air Mobility Squadron, Aircraft Maintenance Flight (MXA) instruments and flight controls craftsman, turns on the hydraulics systems during a hydraulic preflight inspection on a C-17 Globemaster III June 30, 2016, at Al Udeid Air Base, Qatar. MXA Airmen maintain the most technically advanced cargo airlift aircraft in the world as the largest enroute unit in the U.S. Air Forces Central Command area of responsibility. They maintain both C-17 Globemaster III and C-5 Galaxy coming in and out of the base as well as commercial aircraft. (U.S. Air Force photo/Senior Airman Janelle Patiño/Released)