It covered the area where the borders of Phước Tuy, Long Khánh and Biên Hòa Provinces met (today in Đồng Nai and Bà Rịa–Vũng Tàu Provinces).
[1] From Hát Dịch, the VC could harass Highway 1, the main supply route between Biên Hòa and Xuân Lộc District and all points further north.
[2] In the first week of December 1968, the 1st Australian Task Force which consisted of Australian and New Zealand forces launched Operation Goodwood in response to intelligence obtained that suggested a Tet offensive for 1969 was being planned.
U.S, Thai, and South Vietnamese forces were put under 1 ATF command to seek out and destroy the Communist forces in the Hat Dich secret zone.
[7] Although there were few major actions, the operation was considered a success by 1 ATF Command and the VC were forced to abandon their permanent bases in the Hat Dich as a result.