The Battle of Save Island was a Second World War naval battle between a Japanesecruiser force and a joint US and Australian force protecting US transports reinforcing Guadalcanal in August 1942. The Japanese achieved complete surprise, and in two engagements sank three American and one Australian cruiser and damaged two others. The Japanesecommander, fearful of air strikes as dawn broke, then withdrew without attacking the transports which were at his mercy, for which he was reprimanded for his temerity. Research Battle of Save Island