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Jenkins, Charles, S/Sgt.
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Description By the close of 1943, the United States, Australia, and New Zealand had stopped the Japanese juggernaut in the Pacific. To put the Japanese on the defensive, within the framework of the global strategy adopted by American and British leaders, the Allies initiated offensive operations along two mutually supporting lines of advance. Admiral Chester Nimitz, who commanded operations in the Central Pacific, invaded the Gilbert Islands in the Allied drive toward Japan, while General Douglas MacArthur, commander of Allied forces in the Southwest Pacific Area, initiated a series of amphibious assault operations along the New Guinea coast. These operations were the first steps in his drive to return to the Philippines, a pledge he had made when he left the islands in 1942.
Before MacArthur could begin operations against the Philippines, he needed to capture the Bismarck Archipelago, a group of islands off the New Guinea coast. Continued enemy control of the region would otherwise jeopardize his campaign. The struggle for these islands-New Britain, New Ireland, the Admiralties, and several smaller islands-was officially designated as the Bismarck Archipelago Campaign.
Strategic Setting
One of the most important Allied goals in the Pacific was the reduction of the formidable Japanese bastion at Rabaul on the northeastern end of New Britain. With its ample harbor, multiple airfields, and natural defenses, Rabaul provided a sanctuary from which the Japanese could resupply their forces in the Solomons, launch an assault on Australia, or threaten the vital supply lines linking Australia and the United States. Its reduction, code-named CARTWHEEL, had been approved by the U.S. and British Combined Chiefs of Staff as a primary objective in 1942 and was reconfirmed as a priority objective at the Casablanca Conference in 1943. But despite Rabaul's importance, the Allies hesitated to attack the fortress directly. Its land defenses made such an operation too costly. Within the broad confines of Operation CARTWHEEL, the Allies thus decided to isolate and gradually to weaken Rabaul through attrition and starvation. The Bismarck Archipelago Campaign would then deliver the final blow to the Japanese stronghold.
Although the reduction of Rabaul was an important goal, MacArthur was also interested in obtaining bases to support his drive toward the Philippines. All the military services, and especially the Allied navies, required logistical bases to resupply their forces,
repair their equipment, treat their wounded, and support their fighting elements. The Admiralty Islands, within the Bismarck Archipelago, contained an excellent harbor that could fulfill those needs.
Like much of the southern Pacific, the Bismarck Archipelago consisted of volcanic islands with steep mountains, dense jungles, and malaria-breeding swamps. Temperatures were hot, softened only by torrential rains and often dense cloud cover. Governed by Australia before the war, the population consisted almost exclusively of native islanders. A few coconut plantations and missionary settlements reflected inroads of western civilization, but for the most part the islands remained primitive.
The Japanese Eighth Army headquarters directed operations in the archipelago. From Rabaul, it controlled all Japanese Army forces in the Solomons, New Guinea, and the Bismarcks. By late 1943, following the series of defeats which had begun in Papua and Guadalcanal and continued through the battles for North-East New Guinea and the Solomons, the Japanese adopted a posture of strategic defense. Constant reinforcements brought the strength of the Rabaul garrison, the southeast anchor of their defensive perimeter, to over 90,000 men by February 1944, and additional units defended the outlying islands.
On the Allied side, General MacArthur's Southwest Pacific Area included Australia, the Netherlands East Indies from Java eastward, the Philippines, the Bismarck Archipelago, and New Guinea. As commander in chief of the region, MacArthur had operational control of army, navy, marine, and air force components from contributing Allied nations. For the Bismarck Archipelago Campaign, he drew most of his ground forces from Lt. Gen. Walter Krueger's U.S. Sixth Army. Lt. Gen. George Kenney commanded the Allied air forces, composed of the U.S. Fifth Air Force and elements from the Royal Australian Air Force. MacArthur's naval element, commanded by Vice Adm. Thomas Kinkaid, consisted primarily of vessels from the U.S. Seventh Fleet, augmented by ships from British Commonwealth nations.
MacArthur's area of responsibility was one of three major Allied theaters in the Pacific. To his north and east was a largely maritime theater, the Pacific Ocean Areas, under the command of Admiral Nimitz. To his east, Admiral William (Bull) Halsey commanded the South Pacific Area, a subtheater under Nimitz. Having successfully liberated the Solomon Islands from Guadalcanal to Bougainville, Halsey now threatened Rabaul from the east and south. During the Bismarck Archipelago Campaign, Halsey would respond to "strategic direction" from MacArthur but would continue to report to Nimitz.
