At noon, 10 August, the 8th Marines became part of the Tinian Island Command, but the mop-up operations continued. On 25 October 8th Marines left 1st Battalion 8th Marines on Tinian and moved back to Saipan. After five months' garrison duty, 1/8 left Tinian and moved back to Saipan on 1 January 1945. For the 8th Marine Regiment securing Tinian came at a cost of 36 KIA and 294 WIA, the highest casualties of the five regiments assigned to the 2nd Marine Division.