Several thousand Native Americans fought on both sides during the American Civil War (1861-1865). They came from various tribes in the Indian Territory of present-day eastern Oklahoma. They were organized into regiments of mounted riflemen - troops that could fight from the saddle or dismounted in the plains and rolling hills. Confederate Indians were organized into regiments by tribe, with Cherokees eventually raising three regiments, and the Unionists were organized into the Indian Brigade of three regiments. This book explores their lives from enlistment through to discharge and examines how they trained, lived and fought.