In September, 1864, the Fort and Winchester again became a base for Confederate operations during LtGen Jubal Early's Valley Campaigns of 1864. MajGen Sheridan advanced on Winchester September 17, forcing Early to make a defensive stand along the north and eastern borders of Winchester on September 19, with Fort Collier as a center piece and anchor of his defensive line, which stretched from Fort Alabama (also known as Star Fort) on the west to a long line of trenches and ramparts to the east and south of Fort Collier to the Berryville Pike. A Federal cavalry charge was made that day during the Third Battle of Winchester composed of 6,000 cavalrymen coming south from Stephenson's Depot. The assault, composed of five brigades lined across the open fields north of town, was the largest charge in the war made by cavalry against infantry.