US Task Force 38, with carriers USS Saratoga and USS Princeton, launched aircraft 60 miles southwest of Cape Torokina, Bougainville, Solomon Islands against Japanese Cruiser Division 4 anchored at Rabaul, New Britain; the Japanese detected the arrival of Task Force 38 but had mistakenly identified the carriers as transports, thus there was no immediate response. USS Saratoga launched 33 F6F, 16 TBF, and 22 SBD aircraft; USS Princeton launched 19 F6F and 7 TBF aircraft. Facing up to 70 Japanese fighters, the dive bombers attacked first, damaging several cruisers and two destroyers. The torpedo bombers attacked next, making only two hits, and both torpedoes were duds. The US suffered 9 aircraft lost and 14 airmen killed. In addition to the damage to Cruiser Division 4, the Japanese lost 1 D4Y1, 3 A6M, and 1 twin-engine transport aircraft. After the raid by carrier aircraft, US Army B-24 bombers conducted a follow-up attack, killing hundreds but causing minimal damage to shipping and facilities
