North Warning System
The North Warning System (NWS, French: Système d'alerte du nord) is a joint United States and Canadian early-warning radar system for the atmospheric air defense of North America. It provides surveillance of airspace from potential incursions or attacks from across North America's polar region. It replaced the Distant Early Warning Line system in the late 1980s.
| North Warning System | |
|---|---|
| Active | 1988–present |
| Country | Canada & United States |
| Branch | Royal Canadian Air Force United States Air Force |
| Type | Early-warning radar |
| Role | Continental Air Defense |
| Part of | North American Aerospace Defense Command |
| Garrison/HQ | CFB North Bay Joint Base Elmendorf-Richardson |
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