The United States Air Force has vested interest in the defence and sovereignty of the Arctic region.
ILS supports Canada's search and rescue efforts in the Arctic.
The North American Aerospace Defense Command (NORAD) defends Canada and the USA through the establishment of four Forward Operating Locations (FOL) - one of which is in Inuvik.
The Royal Canadian Air Force (RCAF) is a part of National Defence and the Canadian Armed Forces. It defends and protects Canadian and North American airspace in partnership with the United States.
DND is the department of the Government of Canada that supports the Canadian Armed Forces in its role of defending Canadian national interests domestically and internationally.