Two Romanian F-16 Fighting Falcons fly below a U.S. Air Force KC-135R Stratotanker assigned to the 100th Air Refueling Wing, Royal Air Force Mildenhall, England, above Bucharest, Romania, Aug. 20, 2018. The U.S. works closely with Romania on a range of global challenges, including promoting international peace, security and economic prosperity. (U.S. Air Force photo by Senior Airman Dawn M. Weber)