The Battle of Kolombangara was an inconclusive naval engagement between American and Japanese forces in July 1943 off Kolombangara, one of the Solomon Islands. Four Japanese transports escorted by a cruiser and four destroyers were attempting to resupply the Japanese garrison on Kolombangara when they were intercepted by three American cruisers and nine destroyers. The American vessels opened fire, sinking the Japanesecruiser; in reply the Japanese destroyers launched a torpedoattack which crippled one American cruiser. About two hours later the two forces met once more and the Japanese torpedoes crippled the two remaining American cruisers and sank one destroyer. By this time the Japanese had landed their troops and supplies and so they withdrew. Research Battle of Kolombangara