US troops in action during <a href="https://en.wikipedia.org/wiki/Philippine-American_War" class="extiw" title="en:Philippine-American War">Philippine-American War</a>.  Original caption is "Our Boys entrenched against the Filipinos", Records of the War Department.
National Archives, attribution
between circa 1899 and circa 1900 <div style="display: none;">date QS:P,+1500-00-00T00:00:00Z/6,P1319,+1899-00-00T00:00:00Z/9,P1326,+1900-00-00T00:00:00Z/9,P1480,Q5727902</div>
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