U.S. Air National Guard Tech. Sgt. Max Langford, 171st Air Refueling Squadron boom operator, refuels a U.S. Air Force Global Strike Command B-52 Stratofortress during exercise Saber Strike 17 above Riga, Latvia, June 13, 2017. Langford, along with other boom operators from the 171st ARS, refueled B-52s and B-1B Lancers throughout the exercise. The combined training opportunities that Saber Strike 17 provides greatly improves interoperability among participating NATO Allies and key regional partners. (U.S Air Force photo by Senior Airman Tryphena Mayhugh)