(North American Air Defense Command)
Established in September 1957 to integrate the defence systems of Canada and the USA against a possible Soviet military threat. It came to supervise a line of 50 tracking, warning, and control stations across the northern Arctic from Greenland to Alaska, as well as the Mid‐Canada Line which existed 1954–65. In 1963 the first nuclear missiles were deployed amidst much controversy in Canada. In 1981 it changed its name to North American Aerospace Defense Command (NAADC).
Subjects: Contemporary History (Post 1945).