隆慶
The 4th "Đồng Nai" Regiment (also known as the "274 Viet Cong Main Force Regiment" or "VC 274th Regiment" by the US and its allies ) was a regiment of the Viet Cong during the Vietnam War. 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.