Poster depicts the Battle of Las Guasimas near Santiago June 24th, 1898. The 9th and 10th colored cavalry in support of rough riders.

The Battle of Las Guasimas of June 24, 1898, part of the Spanish-American War, unfolded from Major General "Fighting Joe" Wheeler's attempt to storm a Spanish position in the jungles surrounding Santiago. Commanding a division that included the 1st U.S. Volunteer Cavalry and the 10th Regular Cavalry, Wheeler engaged a rearguard under Major General Antero Rubín.

The Spanish infantry held its ground, skewering the advancing American regiments with rifle volleys; however, after an exchange of fire lasting two hours, Rubín, rather than press his advantage, pulled his men from the trenches and resumed his ongoing retreat in the direction of Santiago. The yellow press seized upon this to describe the battle as a rout; in reality, Wheeler had been much closer to defeat.

Historical references courtesy of wikipedia.org