The Battle of Tassafaronga, sometimes referred to as the Fourth Battle of Savo Island or, in Japanese sources, as the Battle of Lunga Point (ルンガ沖夜戦), was a nighttime naval battle that took place on November 30, 1942 between United States (US) Navy and Imperial Japanese Navy warships during the Guadalcanal campaign. The battle took place in Ironbottom Sound near the Tassafaronga area on Guadalcanal.