U.S. aircraft crews prepare Air Force F-15C Eagles for their first launch during Exercise Vigilant Shield 16 from 5 Wing Goose Bay, a Canadian air force base, in Newfoundland, Oct. 19, 2015. The crews are assigned to the California National Guard’s 144th Fighter Wing. About 700 members from Canadian forces and the U.S.Air Force, Navy and Air National Guard deployed to Iqaluit, Nunavut, and 5 Wing Goose Bay, Newfoundland, for Exercise Vigilant 16. U.S. Air National Guard photo by Staff Sgt. Christian Jadot