U.S. Air Force Lt. Col. Christopher Ridlon gives a thumbs up before taxing out an F-15C Eagle on the first mission during Exercise Vigilant Shield 16 from 5 Wing Goose Bay, Newfoundland, Oct. 19, 2015. Ridlon is a pilot assigned to the 194th Fighter Squadron. U.S. Air National Guard photo by Senior Master Sgt. Chris Drudge