U.S. Marines with 75 mm gun on Bougainville island.
U.S. Navy
circa 1944 <div style="display: none;">date QS:P,+1944-00-00T00:00:00Z/9,P1480,Q5727902</div>
<ul><li><cite class="book" style="font-style:normal">(1984) <i> Showa Shi 7</i>, <a href="https://en.wikipedia.org/wiki/en:Japan" class="extiw" title="w:en:Japan"><span title="island country in East Asia">Japan</span></a>:  Kenshu Shupan  <small>ISBN</small></cite></li></ul>