At the time of Pearl Harbor, the United States Army still had ten cavalry regiments. The 26th (Filipino Scouts) fought on horseback in the Philippines, while the rest were fought as infantry. Despite this, the cavalry units maintained their own unique traditions, and identity as they saw action in the Pacific and China-Burma-India theatre. This book covers all of the US cavalry units to see action during World War II. It includes the little-covered Texan National Guard regiments, who fought beside ex-Merrill's Marauders as a deep penetration unit. It also contains color-plates of the uniforms of the US Army's last mounted cavalry as well as tropical combat dress worn by the dismounted units.