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Hallenberg, William, LTJG.
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World War II/Asiatic-Pacific Theater/Guadalcanal Campaign (1942-43)
From Month/Year
August / 1942
To Month/Year
February / 1943
Description The Guadalcanal Campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by Allied forces, was a military campaign fought between 7 August 1942 and 9 February 1943 on and around the island of Guadalcanal in the Pacific theatre of World War II. It was the first major offensive by Allied forces against the Empire of Japan.
On 7 August 1942, Allied forces, predominantly American, landed on the islands of Guadalcanal, Tulagi, and Florida in the southern Solomon Islands with the objective of denying their use by the Japanese to threaten the supply and communication routes between the US, Australia, and New Zealand. The Allies also intended to use Guadalcanal and Tulagi as bases to support a campaign to eventually capture or neutralize the major Japanese base at Rabaul on New Britain. The Allies overwhelmed the outnumbered Japanese defenders, who had occupied the islands since May 1942, and captured Tulagi and Florida, as well as an airfield (later named Henderson Field) that was under construction on Guadalcanal. Powerful US naval forces supported the landings.
Surprised by the Allied offensive, the Japanese made several attempts between August and November 1942 to retake Henderson Field. Three major land battles, seven large naval battles (five nighttime surface actions and two carrier battles), and continual, almost daily aerial battles culminated in the decisive Naval Battle of Guadalcanal in early November 1942, in which the last Japanese attempt to bombard Henderson Field from the sea and land with enough troops to retake it was defeated. In December 1942, the Japanese abandoned further efforts to retake Guadalcanal and evacuated their remaining forces by 7 February 1943 in the face of an offensive by the US Army's XIV Corps, conceding the island to the Allies.
The Guadalcanal campaign was a significant strategic combined arms victory by Allied forces over the Japanese in the Pacific theatre. The Japanese had reached the high-water mark of their conquests in the Pacific, and Guadalcanal marked the transition by the Allies from defensive operations to the strategic offensive in that theatre and the beginning of offensive operations, including the Solomon Islands, New Guinea, and Central Pacific campaigns, that resulted in Japan's eventual surrender and the end of World War II.
My Participation in This Battle or Operation
From Month/Year
August / 1942
To Month/Year
February / 1943
Last Updated: Mar 16, 2020
Personal Memories
Memories Helena's next action was near Rennell Island, again in support of a movement of transports into Guadalcanal. Air attacks from Henderson Field had slowed down theTokyo Express for several days, so 11 October 1942 the Japanese poured everything they could deliver against the airstrip, hoping to neutralize air operations long enough to bring heavy troop reinforcements during the night. The Japanese fleet closed and by 1810 was less than 100 miles from Savo Island. Helena, equipped with superior radar, was first to contact the enemy and first to open fire at 2346. When firing had ceased in this Battle of Cape Esperance in Iron Bottom Sound, Helena had sunk cruiser FurwtaTca and destroyer Fubuki.
Helena was next under attack on the night of 20 October 1942 while patrolling between Espiritu Santo and San Cristobal. Several torpedoes exploded near her but she was not hit. She later participated in a bombardment near Koli Point, Guadalcanal, on 4 November.
Helena saw the climatic Naval Battle of Guadalcanal from its beginning when she was assigned the job of escorting a supply echelon from Espiritu Santo to Guadalcanal. The ship made rendezvous with the convoy of transports off San Cristobal 11 November 1942, and brought it safely into Guadalcanal. During the afternoon of 12 November, word came from a coast watcher, "enemy aircraft approaching." Immediately suspending unloading operation, all ships stood out to form an antiaircraft disposition. When the attack came, superb maneuvering of the force, and its own antiaircraft fire, broke up the first attack but the second damaged two ships. Helena came through without a scratch, and the task group brought down eight enemy planes in the 8-minute action.
As unloading resumed, an increasing stream of reports flowed in from patrolling aircraft. Ominously, the Japanese forces sighted contained no transports, and their intention was thus read as one of being pure offense. Helena, still steaming with Rear Admiral Daniel Calla-ghan's Support Group, aided in shepherding the transports away from Guadalcanal, then reversed course to fateful "Ironbottom Sound." The night of Friday, 13 November, Helena's radar first located the enemy. In the action that followed, the tropical night was lit again and again by the flashes of her big guns. She received only minor damage to her superstructure during the action. Daylight found a tragic scene in the grisly slot. The weaker American fleet had achieved the goal at heavy cost. Great valor had turned back the enemy and prevented the heavy attack that would have been disastrous to the Marine troops ashore.
