A 125th Fighter Wing F-15C Eagle pulls away from a

A 125th Fighter Wing F-15C Eagle pulls away from a KC-135 Stratotanker after refueling during Vigilant Shield 15 on Oct. 22, 2014, at 5 Wing Goose Bay, Newfoundland and Labrador, Canada. The 18th ARS conducted air refueling missions with U.S. Air Force and Royal Canadian Air Force aircraft during the field training exercise. The Vigilant Shield field training exercise is a bi-national NORAD Command exercise which provides realistic training and practice for American and Canadian forces in support of respective national strategy for North America’s defense. NORAD ensures U.S. and Canadian air sovereignty through a network of alert fighters, tankers, airborne early warning aircraft, and ground-based air defense assets cued by interagency and defense surveillance radars. (U.S. Air Force photo by Staff Sgt. Matthew B. Fredericks)