The US Army-Marine Corps joint offensive at Laiana Beach, New Georgia, Solomon Islands successfully penetrated the Japanese defensive line near Laiana Beach; Japanese troops of the 13th and the 229th Regiments attempted a counterattack; behind the front lines, 161st Infantry Regiment of the US Army 25th Division arrived as reinforcements. At Bougainville, 192 US aircraft struck the Japanese airfield at Buin.
