The regiment served in James J. Archer's famed "Tennessee Brigade" assigned to A.P. Hill's Light Division. Hill's men earned a hard won reputation for making critical counterattacks preserving Confederate victories at Cedar Mountain, Second Manassas and Sharpsburg. At Manassas Col. Forbes was mortally wounded and succeeded by William McComb; who´d become a Brigadier General in 1865. The 14th had fought at Seven Pines, Mechanicsville, Shepherdstown, Ox Hill, Harper's Ferry, Frazier's Farm, Fredericksburg and Chancellorsville. At the later the brigade seized the critical high ground of Hazel Grove, forcing the Union right wing to fold back upon its center and allowing Lee to reunite his divided forces.