During the New Georgia Campaign, the 1st Marine Raider Regiment was task organized for a new mission with the 1st and 4th Raiders, and two attached battalions of the 37th Infantry Division, commanded by Liversedge. At the same time, the 2nd and 3rd Raider Battalions were temporarily attached to the 2nd Marine Raider Regiment (Provisional) under Shapley, for the invasion of Bougainville, the final combat action of the Raiders before their dissolution. PFC Henry Gurke of the 3rd Raider Battalion was awarded the Medal of Honor for actions of 6 November 1943, on Bougainville.