Two F-15E Strike Eagles depart after receiving fuel from a U.S. Air Force KC-135 Stratotanker, assigned to the 28th Expeditionary Aircraft Refueling Squadron, during an in-air refueling mission over Southwest Asia, Jan. 20, 2021. The F-15E is a dual-role fighter designed to perform air-to-air and air-to-ground missions. (U.S. Air Force photo by Staff Sgt. Trevor T. McBride)