American missions against Kalai
June 11, 1944–February 15, 1945

June 11, 1944
(RAAF) Twenty-three Beauforts from 6 Squadron, 8 Squadron and 100 Squadron bomb Japanese positions on Kalai.

September 3, 1944
(FEAF) B-25 Mitchells from the 42nd Bomb Group on a low level sweep over Kalai Plantation observed the wrecked wharf, derelict plantation buildings, and several beached barges which had been destroyed in previous missions before attacking a tug boat. Small arms fire damaged B-25H 43-4513 that later force landed.

February 15, 1945
(RAAF) During the morning Beauforts led by a Boomerang bombed and strafed Japanese positions on the northern edge of Kalai Plantation for half an hour.
(Australian Army) For the first time during the New Britain campaign, field artillery from the 2/14th Field Regiment opened fire at Kalai Plantation. Afterwards, the 14th Battalion and 32nd Battalion occupied Kalai and found the Japanese had withdrawn. From Kalai the Battalions moved to Kamandram.