A U.S. Air Force KC-135 Stratotanker refuels an F-15E Strike Eagle assigned to the 492nd Fighter Squadron, RAF Lakenheath, in support of Exercise Baltic Operations, over Germany, June 12, 2019. Exercise Baltic Operations is a U.S. exercise focused on joint interoperability in the Baltic Region, planned and executed this year by the U.S. and NATO. (U.S. Air Force photo by Senior Airman Alexandria Lee)