 Weyand wanted that area searched carefully before risking a more daring sweep farther north.The 2nd Brigade of the 25th Division established a firebase on 10 November at Bau Co, an old French fort located on Route 4, 10km north of Nui Ba Den, the dominant hill mass overlooking War Zone C. The brigade then deployed its forces to the northeast, where intelligence had traced the 271st Regiment.To conserve helicopters for resupply missions, O'Connor ordered the 196th Brigade, upon return to his control on the twelfth, to open the ground route between Tây Ninh and Bau Co.