Dover Air Force Base, 3rd Airlift Squadron, C-17 Globemaster III
Maj. Eric Kut, 3rd Airlift Squadron assistant director of operations, lines up and prepares the C-17 Globemaster III in preparation for aerial refueling with a KC-135 Stratotanker from the 127th Air Refueling Group Selfridge Air National Guard Mich., May 17, 2013, over Colorado. After departing Dover Air Force Base, Del., refueling took place in preparation for fly-away tactics trainer being conducted in Colorado. (U.S. Air Force photo/Senior Airman Jared Duhon)