A U.S. Air Force KC-135 Stratotanker flown by the 912th Air Refueling Squadron from March Air Force Base, Calif., takes off at Joint Base Elmendorf-Richardson, Alaska, to provide refueling capabilities to Royal Canadian Air Force CF-18s while both units participate in the Vigilant Shield 2017 Field Training Exercise 20 Oct., 2016, in the high arctic. […]