Hát Dịch

Hát Dịch secret zone (mật khu Hát Dịch, chiến khu Hát Dịch) was an area within South Vietnam. It covered the area where the borders of Phước Tuy, Long Khánh and Biên Hòa Provinces met.

During the Vietnam War, the area was the headquarters for the VC 274th Regiment, and was known as the Hat Dich secret zone and Base Area 301.