Operation Bribie ( 17–18 February 1967 ) , also known as the Battle of Ap My An , was fought Hostile_encounter 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 .

Two hours later , a Viet Cong company was reported Reporting to have formed Creating a tight perimeter in the rainforest north of Lang Phuoc Hai , near the abandoned hamlet of Ap My An .