The Battle of Hat Dich (3 December 1968 − 19 February 1969) was a series of military actions fought between Australian and New Zealand forces of the 1st Australian Task Force (1 ATF) and the North Vietnamese Army and Viet Cong during the Vietnam War. Under the codename Operation Goodwood, two battalions from 1 ATF deployed away from their base in Phuoc Tuy Province, operating against suspected communist bases in the Hat Dich area, in western Phuoc Tuy, south-eastern Bien Hoa and south-western Long Khan provinces as part of a large allied sweep known as Operation Toan Thang II. The Australians and New Zealanders conducted sustained patrolling throughout the Hat Dich and extensively ambushed tracks and river systems in the Rung Sat, occupying a series of fire support bases as operations expa