On 15 Feb twelve men moved on seven APCs to an area S of DAT DO, to position BPs in anticipation of future tactical moves by 1 ATF. A braced quadrilateral with three sides measured and all angles observed, with the apex at NUI DAT, was used to position stns in YS 4657 4758 4859.
PS Sadler, Doc. 7 Ch 4, Survey Sect. Part C
DESCRIPTION
A Taskforce reactionary blocking search and destroy operation by 6 RAR to prevent the withdrawal of a VC force after attacking ARVN/Regional forces in Lang Phuoc Hai and Lo Gom south of Dat Do on Route 44. 101 Fd Bty was in direct support from a FSB at the airstrip, Dat Do.
131 SURVEY
Survey for 101 Fd Bty and involvement of 131 Survey, is unknown.
Some comments on this report of the survey activities during February 1966 might be fruitful. The first was the obvious need for protection, by either infantry or APCs. This had to be provided if the security of the surveyors, (and the completion of the survey scheme) was to be guaranteed. It should be noted that one at the stations positioned in YS 46 57 was only 1500 meters from the steep slope of one to the outcrops of the Long Hai Hills where the NLF had bases, and less than 500 meters from the jungle surrounding those hills.
PS Sadler, Doc. 7 Ch 4, Survey Sect. Part C