High Quality Content by WIKIPEDIA articles! Operation Bribie (17–18 February 1967), also known as the Battle of Ap My An, was fought during the Vietnam War in Phuoc Tuy province between Australian forces from the 6th Battalion, Royal Australian Regiment (6 RAR) and two companies of Viet Cong from D445 Battalion, likely reinforced by North Vietnamese regulars. During the night of 16 February the Viet Cong attacked a South Vietnamese Regional Force compound at Lang Phuoc Hai, before withdrawing the following morning after heavy fighting with South Vietnamese forces. Two hours later a Viet Cong company was subsequently reported to have formed a tight perimeter in the rainforest 2 kilometres (1.2 mi) north of Lang Phuoc Hai, near the abandoned hamlet of Ap My An. In response the Australians mounted a quick reaction force operation. Considering that the Viet Cong would attempt to withdraw as they had during previous encounters, forces from 1st Australian Task Force (1 ATF) would subsequently be inserted into blocking positions on the likely withdrawal route in an attempt to intercept and destroy them.