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210323-Z-XD389-1001.JPG Photo By: Staff Sgt. Austin Harvill

Thule Air Base, Greenland - Two Colorado Air National Guard F-16s, 140th Wing, Colorado Air National Guard, prepare for a training mission at Thule Air Base, Greenland, during North American Aerospace Defense Command's Arctic air defense exercise, Amalgam Dart 21-02, March 23, 2021. Amalgam Dart 21-02 provides NORAD the opportunity to hone homeland defense skills as Canadian, U.S., and NATO forces operated together in the Arctic. A bi-national Canadian and American command, NORAD employs a network of space-based, aerial and ground-based sensors, air-to-air refueling tankers, and fighter aircraft, controlled by a sophisticated command and control network to deter, detect and defend against aerial threats that originate outside or within North American airspace. (U.S. Air National Guard photo by Staff Sgt. Austin Harvill)


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