Two F-15 Eagles assigned to the 144th Fighter Wing, Fresno Air National Guard Base, California, fly behind a KC-135 Stratotanker after an aerial refueling mission, Oct. 20, 2015, over northern Canada. From Oct. 15 - 26, 2015, approximately 700 members from the Canadian Armed Forces, United States Air Force, United States Navy, and United States Air National Guard are deploying to Iqaluit, Nunavut, and 5 Wing Goose Bay, Newfoundland and Labrador for Exercise Vigilant Shield 16 (U.S. Air Force photo by Senior Airman Victor J. Caputo)