3 divisions of US Marine Corps squadron VMF-214, led by Gregory Boyington, attacked Ballale Airfield in the Shortland Islands. Later in the day, the same 3 divisions joined VMF-221 in the attack of Kahili Airfield on Bougainville island. 22 Japanese fighters rose to defend Kahili. US airmen claimed 14 Japanese aircraft shot down with 6 probables. Japanese records later revealed the loss of 4 aircraft in combat, 1 heavily damaged and written off, and 3 lightly damaged Facility
