Arctic Air Defense Four U.S. F-16 fighting falcons fly in formation with two Canadian CF-188 Hornets over the skies of Labrador, Canada, Sept. 20, 2020. The aircraft participated in a North American Aerospace Defense Command Arctic Air Defense Operation. SHARE: Download: Full Size (1.28 MB) Tags: NORAD, Air Force, Partnerships Credit: Courtesy photo VIRIN: 200920-F-JS115-463M.JPG Photo Gallery