FILE PHOTO: A U.S. F-22 Raptor, based out of Al Udeid Base in Doha, Qatar, receives fuel from a 28th Expeditionary Air Refuelling Squadron KC-135 Stratotanker during a combat air patrol mission over an undisclosed location in Southwest Asia, in this picture taken September 13, 2019 and released by U.S Air Force on September 18, 2019. Russ Scalf/U.S. Air Force/Handout via REUTERS