U.S. Air Force Senior Airman Andrew Domingo, 435th Contingency Response Squadron crew chief, marshals a U.S. Air Force F-16 Fighting Falcon assigned to the 510th Fighter Squadron during exercise Rapid Buzzard Sept. 25, 2019, at Graf Ignatievo Air Base, Bulgaria. U.S. Air Force Airmen 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)