The patch worn by members of the <a href="https://en.wikipedia.org/wiki/3rd_Battalion_3rd_Marines" class="extiw" title="w:3rd Battalion 3rd Marines">3rd Battalion, 3rd Marines</a> during the <a href="https://en.wikipedia.org/wiki/Vietnam_War" class="extiw" title="w:Vietnam War">Vietnam War</a>.
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