The first – and only – assault upon the Navy Yard, Fort Barrancas, and the Advanced Infantry Redoubt occurred on October 8, 1863. Brigadier General James H. Clanton led 200 Confederates from the 57th and 61st Alabama Infantry, and the 6th and 7th Alabama Cavalry to the south side of Bayou Grande just north of Barrancas. A short-lived skirmish occurred around the Advanced Redoubt with the 7th Vermont Infantry and 14th Regiment Corps d’Afrique under the command of Colonel William C. Holbrook and ended in a Confederate retreat.