Battle of the Blackett Strait

Battle of the Blackett Strait. The Battle of the Blackett Strait was a nighttime naval engagement fought on 5–6 March 1943 during the Solomon Islands campaign of World War II. In the battle, a squadron of United States Navy destroyers intercepted and decisively defeated a Japanese destroyer force attempting to reinforce troops on Kolombangara. The action, notable for its effective use of radar-directed gunfire and torpedoes, significantly disrupted Japanese logistical operations in the Central Solomons.

Background

By early March 1943, following the Allied victory at the Battle of Guadalcanal, the focus of the Pacific War shifted northward to the New Georgia Sound. The Imperial Japanese Navy was engaged in the "Tokyo Express" runs, using fast warships to deliver supplies and reinforcements to garrisons on islands like Kolombangara and New Georgia. To counter these operations, the United States Navy deployed destroyer task forces from Task Force 68, utilizing their superior SG radar to gain a tactical advantage in the confined waters of the Solomon Islands. Intelligence from Coastwatchers and aerial reconnaissance by the United States Army Air Forces and Royal New Zealand Air Force indicated a likely Japanese reinforcement run through the Blackett Strait on the night of 5 March.

Battle

On the evening of 5 March, the Japanese destroyers ''Murasame'' and ''Minegumo'' departed Shortland and entered the Blackett Strait to deliver supplies to Vila on Kolombangara. Waiting in ambush was U.S. Destroyer Division 45, commanded by Captain Arleigh Burke aboard the USS ''Waller'', and supported by the USS ''Conway'' and USS ''Cony''. Guided by radar contacts, the American destroyers opened fire at approximately 01:00 on 6 March from a range of about 10,000 yards. The initial salvoes from their 5"/38 caliber guns scored immediate hits on both Japanese vessels, which were caught completely by surprise and unable to effectively return fire. The USS ''Waller'' then launched a spread of Mark 15 torpedos, one of which struck Murasame, causing a catastrophic explosion. Both Japanese destroyers were quickly immobilized and sank within minutes after intense shelling. The entire engagement lasted less than half an hour.

Aftermath

The swift destruction of Murasame and Minegumo resulted in the loss of nearly all hands, with 326 Japanese sailors killed. The American force sustained only minor damage from sporadic return fire. The battle demonstrated the growing prowess of American naval tactics in night fighting, heavily reliant on radar and coordinated gunnery. The defeat forced the Imperial Japanese Navy to reassess its reinforcement tactics in the Solomon Islands, temporarily curtailing operations through the central slots. The victory was a morale boost for the Allies and was followed by further successful actions like the Battle of Kula Gulf and the Battle of Kolombangara. Captain Arleigh Burke's performance further cemented his reputation, leading to his command of Destroyer Squadron 23, the "Little Beavers."

Order of battle

Allied Forces (United States) * Destroyer Division 45 (Captain Arleigh Burke): ** USS ''Waller'' (flagship) ** USS ''Conway'' ** USS ''Cony'' * Overall command under Rear Admiral Aaron S. Merrill of Task Force 68.

Japanese Forces * Destroyer Division 2 (under the operational control of the 8th Fleet): ** ''Murasame'' (flagship) ** ''Minegumo'' * Overall area command under Vice Admiral Masao Tachibana at Rabaul.

Ships involved

* United States Navy: ** ''Fletcher''-class destroyers: USS ''Waller'' (DD-466), USS ''Conway'' (DD-507), USS ''Cony'' (DD-508). * Imperial Japanese Navy: ** ''Shiratsuyu''-class destroyer: ''Murasame''. ** ''Asashio''-class destroyer: ''Minegumo''.

Category:Naval battles of World War II involving the United States Category:Naval battles of World War II involving Japan Category:Battles of the Solomon Islands campaign Category:1943 in the Solomon Islands Category:March 1943 events