U.S. Air Force Master Sgt. Scott Dillinger, 6th Air Refueling Squadron KC-10 Extender flight engineer, conducts pre-flight checks inside a KC-10 at Eielson Air Force Base, Alaska, June 2, 2018. The aircraft flew 2,375 miles from Eielson to Misawa Air Base, Japan, to provide refueling support for two Air Force F-15C Eagles, assigned to the 18th Wing at Kadena Air Base, Japan. (U.S. Air Force photo by Tech. Sgt. James Hodgman)