78 Allied fighters (US Marine Corps F4U fighters, US Navy F6F fighters, RNZAF Kittyhawk fighters) took off from Torokina Airfield on Bougainville, Solomon Islands for a fighter sweep over Rabaul, New Britain. 70 Japanese fighters rose to defend. RNZAF pilots claimed 5 Japanese shot down while suffering 2 losses, while the Americans claimed 4; Japanese records would later show that only 2 A6M aircraft were lost on this day (with only 1 pilot killed). Gregory Boyington, who participated in the sweep, thought the Japanese only launched a limited number of aircraft in defense because the Allies sent too many fighters, and it made more sense for the Japanese to rely more on anti-aircraft guns rather than risking fighters.
