An award-winning cavalry historian shares a myth-busting look at how the Union cavalry surpassed its Confederate counterpart and helped win the Civil War.   The Army of the Potomac’s mounted units suffered early in the Civil War at the hands of the horsemen of the South. However, by 1863, the Federal cavalry had evolved into a fearsome fighting machine. Despite the numerous challenges occupying officers and politicians, as well as the harrowing existence of troopers in the field, the Northern cavalry helped turn the tide of war much earlier than is generally acknowledged.   In this expertly researched volume, historian Eric J. Wittenberg describes how the Union cavalry became the largest, best-mounted, and best-equipped force of horse soldiers the world had ever seen. The 1863 consolidation of numerous scattered Federal units created a force to be reckoned with—a single corps ten thousand strong. Wittenberg’s research thoroughly debunks the narrative that the Confederate “cavaliers” were the superior force.