distant early-warning line

distant early-warning line

[′dis·tənt ‚ər·lē ′wȯrn·iŋ ‚līn]
(ordnance)
Defense line of radar stations at about the 70th parallel on the North American continent.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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