A U.S. Air Force KC-10 Extender crew chief assigned to the 380th Expeditionary Aircraft Maintenance Squadron cleans a jet’s window, at Al Dahfra Air Base, United Arab Emirates Dec. 17, 2019. The 908th Expeditionary Air Refueling Squaron’s KC-10 Extenders are deployed with U.S. Air Forces Central Command and are responsible for delivering fuel to U.S. and coalition forces, enabling war-winning air power, deterrence, and stability to the region. (U.S. Air Force photo by Staff Sgt. Daniel Snider)