26 January 1942 - 27 January 1942

This honour was awarded for participation in the ambush at Jemaluang, on the east coast of Johore, Malaya. At Jemaluang Australian troops of the 22nd Infantry Brigade, including the 2/18th Infantry Battalion, successfully ambushed the invading Japanese troops, inflicting heavy casualties on the enemy. The battle honour is unique to the 2/18th.