A U.S. Air Force F-22 Raptor, based out of Al Udeid Air Base, Qatar, flies alongside a KC-135 Stratotanker during an aerial refueling mission above an undisclosed location, in this undated handout picture released by U.S. Air Force on July 29, 2019. Chris Drzazgowsk/U.S. Air Force/Handout via REUTERS