Today we welcome a guest post from William Glenn Robertson, author of River of Death--The Chickamauga Campaign: Volume 1: The Fall of Chattanooga, just published by UNC Press. The Battle of Chickamauga was the third bloodiest of the American Civil War and the only major Confederate victory in the conflict's western theater. It pitted Braxton Bragg's Army of Tennessee against William S. Rosecrans's Army of the Cumberland and resulted in more than 34,500 casualties. In this first volume of an authoritative two-volume history of the Chickamauga campaign, William Glenn Robertson provides a richly detailed narrative...