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The first battle, a fight in August to secure the area around Chu Lai called Operation S.
During the latter half of 1965, Marine forces fought repeated engagements against large Viet Cong units, most notably the 1st Viet Cong Regiment.
Marine Corps\' war in Vietnam was a mixture of large-scale conventional battles against main Viet Cong and North Vietnamese Army (NVA) units and smaller pacification operations designed to secure the South Vietnamese population from Communist insurgents.
The U.
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