The Battle of Hat Dich (3 December 1968 − 19 February 1969) was a series of military actions fought between an allied contingent, including the 1st Australian Task Force (1 ATF) and the People's Army of Vietnam (PAVN) and Viet Cong (VC) during the Vietnam War. Under the code name Operation Goodwood, two battalions from 1 ATF deployed away from their base in Phước Tuy Province, operating against suspected PAVN/VC bases in the Hat Dich area, in western Phước Tuy, south-eastern Biên Hòa and south-western Long Khánh 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 Special Zone, occupying a series of fire support b