Last modified on 19 June 2013, at 17:19

DEW line

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DEW line (uncountable)

  1. (military) The Distant Early Warning Line, a series of radar stations, located north of the Arctic Circle and extending from Alaska to Baffin Island, operated by American and Canadian authorities from the late 1950s to the early 1990s to help protect North America by detecting incoming hostile missiles and aircraft.