Throughout November, as part of several subsequent echelons, the remainder of the 3rd Marine Division, the US 37th Infantry Division (under Major General Robert S. Beightler) and Advance Naval Base Unit No. 7, landed at Cape Torokina. They arrived aboard high-speed transports (APDs) and the slower LSTs, which had been held back initially due to fears of air attack. On 13 November, Major General Roy S. Geiger assumed command of Allied forces on Bougainville from Wilkinson. As late as Thanksgiving (25 November), the beachhead was still under hostile fire. As the sixth echelon of the invasion force was unloading, Japanese artillery fired on the landing ships, inflicting casualties. The Marines silenced these guns the following day. On 15 December 1943, responsibility for Bougainville passed from I Marine Amphibious Corps to the Army's XIV Corps.