Gravel mines

（重定向自Gravel mine）

Gravel mines, also called Button mines, were small U.S. made air-dropped anti-personnel mines. They were used extensively during the Vietnam War as part of the McNamara Line. They were also used as a rapid-deployment area denial expedient, to provide a barrier during combat search and rescue (CSAR) operations between downed pilots or other endangered units and infantry threats.

单词	Gravel mine
释义	Gravel mine 英语百科 Gravel mines （重定向自Gravel mine） Gravel mines, also called Button mines, were small U.S. made air-dropped anti-personnel mines. They were used extensively during the Vietnam War as part of the McNamara Line. They were also used as a rapid-deployment area denial expedient, to provide a barrier during combat search and rescue (CSAR) operations between downed pilots or other endangered units and infantry threats.
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