Hester’s corps headquarters was formed by taking half of the 43d Division staff, the rest remaining with the Assistant Division Commander, Brigadier General Leonard F. Wing, USA. Over 30,000 men were in the units assigned to the New Georgia Occupation Force, the majority of which were Army troops, Marine and Seabee units, patrol-torpedo (PT) boat squadrons, and naval base personnel. Marines from the 10th and 11th Defense battalions were in reserve as reinforcements.
Col Harry B. Liversedge commanded the 1st Marine Raider Regiment and the XIV Corps Northern Landing Group. His mixed Army and Marine command was used as infantry rather than in the special operations role for which the raiders had been trained and equipped. Isolated from the main attack on Munda, he had to commit his forces to supporting operations.
Marine Corps Historical Collection
Defending the New Georgia Island Group were the Southeast Detachment of Major General Noboru Sasaki and the 8th Combined Special Naval Landing Force under Rear Admiral Minoru Ota (later to die as commander of Japanese naval forces at Okinawa); subordinate units included the 13th Infantry Regiment, 229th Infantry Regiment, Kure 6th Special Naval Landing Force, and the Yokosuka 7th Special Naval Landing Force. New Georgia and Kolombangara, and enemy outposts on Rendova, Santa Isabel, Choiseul, and Vella Lavella, were strongly defended. The number of Japanese occupying the outlying islands was comparatively small. The forces on Kolombangara were “estimated” at 10,000 troops while those on New Georgia were figured to be between 4,000 and 5,000.
Marine Corps Historical Collection
LtCol William J. Scheyer, third from the left, was the 9th Defense Battalion commander. He is shown at his New Georgia command post with Col John W. Thomason, Jr., second from the left, from Admiral Nimitz’ CinCPac headquarters at Pearl Harbor, and Maj Zedford W. Burriss of the 10th Defense Battalion on the left.
1st and 2d Marine Aircraft Wing squadrons based in the Russells and Guadalcanal under the control of Brigadier General Francis P. Mulcahy’s 2d Marine Aircraft Wing forward echelon staff would provide air support for the operation. The staging areas for the attack on New Georgia were Guadalcanal and the Russell Islands, where the Marine 4th Base Depot, commanded by Colonel George F. Stockes, established a supply dump for XIV Corps.
In mid-Spring 1943, reconnaissance parties from the units slated to take part in the New Georgia campaign began patrolling in the areas designated for landings. Solomon Islanders acted as guides and scouts led by British resident administrators and Australian navy intelligence personnel, who, as Coastwatchers, hid in the hills in the enemy rear areas. From here they radioed information about Japanese troop, air, and naval sightings and movements to Allied listening stations. With the exception of two or three members from each patrol party who remained behind to arrange for guides and to give homing signals to Allied vessels on their approach, all patrols returned to their parent units by 25 June 1943. For these individuals, the campaign was already underway.