The Battle of Long Tân (18 August 1966) was fought between the Australian Army and Viet Cong forces in a rubber plantation near the village of Long Tân, about 27 kilometres (17 mi) north east of Vung Tàu, South Vietnam. The action occurred when D Company of the 6th Battalion, Royal Australian Regiment (6 RAR), part of the 1st Australian Task Force (1 ATF), encountered the Viet Cong 275th Regiment and elements of the D445 Local Forces Battalion. D Company was supported by other Australian units, as well as New Zealand and United States artillery.