At Ringgold, Georgia, it was attacked by a brigade of cavalry, under command of Gen. Forrest, and drove them from the town, killing and wounding a large number. During the Chickamauga battle, the regiment was again detached from the brigade to secure the road between the Corps and Chattanooga while the rest of the brigade took part in Gen. Reynolds' Division of Gen. Thomas' Corps. This combat power prevented much larger Confederate units from crossing a bridge on the first day of Chickamauga and stopped the left column of the Bragg's key breakthrough on the second day. As the brigade fell back to Chattanooga, it collected the 92nd and kept the line of retreat open for Thomas' men.