This book investigates the often-overlooked period of Lieutenant Colonel George Armstrong Custer's life spent in Texas during the Civil War. John M. Carroll, a noted historian of the American West, draws upon extensive archival research and primary source documents to present a detailed account of Custer's command of the Michigan Cavalry Brigade and his experiences on the Texas frontier.

This work is recognized as a significant contribution to the understanding of George Armstrong Custer's military career, focusing on a less-examined phase of his life. Historians and Civil War enthusiasts have noted its thorough research and detailed narrative, which provides a nuanced view of Custer's actions and character during his Texas assignment. The book is considered a valuable resource for those interested in military history and the American West.