By the late 1820s, furs, land and minerals made the Indian territories west of the Mississippi River an increasingly inviting realm. The vast expanse of the Great Plains, coupled with the fact that many tribal groups of the region possessed horses, meant a more mobile type of soldier was required. Consequently, on 15 June 1832, Congress authorised the raising of 600 mounted Rangers. They proved such a success that they eventually gave way to a more permanent organisation: the Dragoons. John Langellier details the fascinating campaign history of the US Dragoons 1833-55, complete with numerous illustrations including eight fine full page colour plates by Bill Younghusband.