The
Distant Early Warning Line, also known as the
DEW Line or
Early Warning Line, was a system of
radar stations in the far northern
Arctic region of Canada, with additional stations along the North Coast and
Aleutian Islands of
Alaska, in addition to the
Faroe Islands, Greenland, and Iceland. It was set up to detect incoming
Soviet bombers during the
Cold War, and provide early warning of any sea-and-land invasion.