Thule Air Base A Ballistic Missile Early Warning System at Thule Air Base, Greenland, provides North American Aerospace Defense Command with tactical/attack assessment on all intercontinental ballistic missiles and submarine-launched ballistic missiles penetrating the site’s coverage. Its secondary mission is to provide NORAD with launch and impact predictions for attack assessment by NORAD. Courtesy photo SHARE IMAGE: Download Image: Full Size (1.74 MB) Photo By: Courtesy photo VIRIN: 180327-F-O3755-0003.JPG Photo Gallery