Kula Gulf borders Kolombangara Island to the west and New
Georgia Island to the south.
On May 6, 1943 USS Gamble, USS Preble and USS Breese laid sea mines into the Blackett Strait and western entrance to Kula Gulf.
During the night of May 7-8, 1943 as four Japanese destroyers transited Blackett Strait, one was sunk and two others Oyashio and Kagero were damaged.
Afterwards, Michishio attempted to help the damaged vessels but was spotted by a coastwatcher and Allied aircraft intercepted the destroyers and damaged Michishio.
Battle of Kula Gulf
On July 6, 1943 a U. S. Navy (USN) force of three cruisers and four destroyers intercepted an Imperial Japanese Navy (IJN) force of ten destroyers in three groups.
USS Helena (CL-50)
Sunk July 6, 1943 by three torpedoes into Kula Gulf
Sunk July 13, 1943 by a torpedo during the Battle of Kolombangara into Kula Gulf, shipwreck discovered 2019.
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October 23, 2019