EARLY WARNING SITE
- A site, building or structure used for the detection of approaching hostile aircraft, shipping or missiles early enough to allow a counterattack or defensive measures to be taken. Use more specific term.
- English Heritage
- http://creativecommons.org/licenses/by/3.0 (FISH Thesaurus of Monument Types)
- http://www.english-heritage.org.uk (FISH Thesaurus of Monument Types)
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