The last cavalry charge made on horseback by the U.S. Army took place in 1942, when the United States fought the Japanese army in the Philippines. After that, the mounted cavalry was replaced by tanks.

When did cavalry become obsolete?

Horse cavalry began to be phased out after World War I in favour of tank warfare, though a few horse cavalry units were still used into World War II, especially as scouts. By the end of World War II, horses were seldom seen in battle, but were still used extensively for the transport of troops and supplies.

When did the US cavalry end?

The US Cavalry existed in various forms from 1775 to 1942. For all practical purposes this service ended during World War II when General Jonathan Wainwright surrendered his saber to the commander of Japanese forces at Corregidor.