The North Warning System (NWS) is a joint United States and Canadian 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.
Read more about North Warning System: Overview, History, Site Remediation, Stations, Distant Early Warning Line Sites Not Included
Famous quotes containing the words north, warning and/or system:
“Come see the north wind’s masonry.
Out of an unseen quarry evermore
Furnished with tile, the fierce artificer
Curves his white bastions with projected roof”
—Ralph Waldo Emerson (1803–1882)
“By day thy warning ringing bell to sound its notes,
By night thy silent signal lamps to swing.”
—Walt Whitman (1819–1892)
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—C. Wright Mills (1916–1962)