...lly's brigades. General Breckinridge's division, which had previously arrived from Mississippi, was placed in the corps of Gen. D. H. Hill. When General Bragg moved out of Chattanooga to attack Rosecrans ' flanking corps, his Federal opponent thought he was in full retreat toward Rome. Crittenden's corps was therefore started after him and proceeded as far as Ringgold, when it was discovered that th...