A U.S. Air Force KC-10 Extender assigned to the 380th Air Expeditionary Wing, Al Dhafra Air Base, United Arab Emirates, taxis toward the runway Feb. 13, 2018. The KC-10 Extender is one of 59 in the active duty Air Force’s inventory that is designed to increase the Air Force’s global mobility through aerial refueling. (U.S. Air Force photo by Airman 1st Class D. Blake Browning)