U.S. Air National Guard 1st Lt. Alex Begue, 171st Air Refueling Squadron pilot, flies a KC-135 Stratotanker during exercise Saber Strike 17 above Riga, Latvia, June 8, 2017. The crew off-loaded almost 50,000 pounds of fuel into a U.S. Air Force Global Strike Command B-1B Lancer during the flight.