Battle of Pearl Ridge
On the 30th of December 1944, Australians of the 25th Infantry Battalion fought against the Japanese in the Battle of Pearl Ridge in Bougainville, New Guinea. This battle, although a footnote in the wider campaign, still marked an Australian victory in the face of tough opposition.
Initially, the Australians believed that the ridge was held by less than a company of Japanese, and the Australians were confident during the initial four pronged attack. It rapidly became apparent that the defending force had been reinforced by a Brigade size element, bringing the force close to a Battalion in strength and almost equal to the attacking Australians.
After being held up on the right of their advance, the Australians dug-in overnight and repulsed a strong Japanese counterattack before resuming the attack on 31 December. During close quarter fighting which involved hand to hand combat in the forward pits, and ‘danger close’ artillery fire, the Australians resisted the Japanese attacks throughout the night and into the morning of the 31st. After the attack, Australian scouts found the ridge abandoned and further patrols found that the Japanese had been swept off the ridge.
During the battle, the Australians lost 10 killed and 25 wounded, whilst the Japanese casualties are estimated at 34 killed and 1 captured with an unknown number wounded.
Pearl Ridge would prove to be a vital strategic position for the remainder of the war as it it provided a vantage point where one could see from one side of Bougainville to the other, a distance of over 48km. The Australians later established an observation post on the ridge, which had commanding views of the whole island, and throughout the remainder of the campaign used it to control artillery fire as they advanced towards Japanese enclaves in the north and south of the island.
Image: Australian artillerymen fire a 25-pounder