The regiment was part of the VC 5th Division and operated in the Bien Hoa, Đồng Nai, Phước Tuy and Long Khánh provinces, in what was known as the Hát Dịch Secret Zone.

The regiment consisted of about 1,500 men, recruited from outside the area of their operation supplemented by North Vietnamese Army regulars.

Local Viet Cong elements acted as scouts during operations.

The Regiment or its battalions participated in the battles of Suoi Chau Pha, Hat Dich,[2] Long Khanh, Operation Coburg and the Battle of Long Tan against Australian and New Zealand forces, and the Battle of Phuoc Long against the Army of the Republic of Vietnam.

After the Tet Offensive in 1968, the regiment left the 5th Division, stayed and operated in Ba Ria-Long Khanh region, under direct command of Military Region 9.