U.S. Air Force Staff Sgt. Emanuel Montanez waits for the signal from a pilot to marshal a U.S. Air Force F-15C Eagle during Exercise Vigilant Shield 16 from 5 Wing Goose Bay, Newfoundland, Oct. 19, 2015. Montanez is a crew chief for the 144th Maintenance Group. U.S. Air National Guard photo by Senior Master Sgt. Chris Drudge