A U.S. Air Force F-16 Fighting Falcon assigned to the 510th Fighter Squadron flies over Graf Ignatievo Air Base, Bulgaria, during exercise Rapid Buzzard Sept. 25, 2019. U.S. Air Force Airmen and F-16 Fighting Falcons assigned to the 31st Fighter Wing executed a rapid deployment to conduct “hot pit” refueling and participate in the bilateral training exercise with the Bulgarian Air Force. (U.S. Air Force photo by Senior Airman Savannah L. Waters)