Two Airmen from the 726th Air Mobility Squadron begin to refuel a Boeing C-17 Globemaster III on the flightline at Spangdahlem Air Base, Germany, April 22, 2016. A strategic transit hub in Europe, the 726th AMS provides support for heavy cargo aircraft and aircrews passing through Spangdahlem, Germany. (U.S. Air Force photo by Airman 1st Class Timothy Kim/Released)