The Binh Hoa massacre Killing was featured in a Korean documentary `` The Last Lullaby '' on the subject of Korean war crimes Committing_crime in South Vietnam .

The main US Army operation took place Process_start in an area about north of Bien Hoa , where the US 1st Battalion , 503rd Infantry Regiment ( 1/503 ) , 173rd Airborne Brigade conducted Action a helicopter assault on an LZ northwest of the Dong Nai River and Song Be River .

American and South Vietnamese intelligence reports Reporting had indicated Statement that an imminent communist offensive during the Tet New Year festival was likely , and in response Response the Australians and New Zealanders were deployed Arranging away from their base in Phuoc Tuy Province to bolster American and South Vietnamese forces defending the Long Binh–Bien Hoa complex north-east of Saigon .