At 15 : 40 , just as the forward sections entered the tree line on the other side .
Before platoon headquarters could follow , a group of six to eight VC approached their right flank along the track from the south .
At 15 : 40 , just as the forward sections entered the tree line on the other side , but before platoon headquarters could follow , a group of six to eight VC approached their right flank along the track from the south .