Two U.S. Air Force F-35s also responded, as well as one E-3 Sentry, an airborne warning and control system, or AWACS, aircraft designed for surveillance and tracking.

Several hours later, NORAD said it also scrambled two F-16 fighter jets from Alaska to Greenland in order to "forward posture NORAD presence in the Arctic." The command said that move was "not in ...

Canada and Australia are planning to jointly develop a new military radar system in the Arctic amid a global surge of interest in the region, according to Canadian Prime Minister Mark Carney, who ...