History
The Distant Early Warning Line, constructed in the late 1950s, was reaching obsolescence in the 1980s. With the signing of North American Air Defence Modernization agreement at the "Shamrock Summit" between Prime Minister Mulroney and President Reagan in Quebec City on 18 March 1985, the DEW Line began its eventual upgrading and transition becoming the North Warning System (NWS) of today.
The NWS began limited operation in 1988 with the commissioning and acceptance of the three newly constructed east coast sites BAF-3 Brevoort Island, Nunavut, LAB-2 Saglek, and LAB-6 Cartwright both in Labrador. Throughout the late 1980s and early 1990s, new NWS LRR radars replaced former DEW Line sites. DEW sites that weren't transitioned to North Warning operation were eventually closed down. The official activation of the NWS and inactivation of the DEW Line took place on 15 July 1993.
The bi-national North Warning System Office (NWSO) is located in Ottawa, Ontario and staffed with both Canadian and American military and civilian personnel. Manned sites are operated by the Royal Canadian Air Force. Logistical and maintenance support for the NWS is supplied by the Air Force Materiel Command of the United States Air Force, located at Ogden Air Logistics Center (OO-ALC), Hill Air Force Base, Utah.
Read more about this topic: North Warning System
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