Our other road blocks were, like Huggins, perimeters organized for all-around defense. When the 163d took over Perimeter Huggins from the Australian 39th and 49th Infantry Battalions and the Australian 2/7 Cavalry, Japanese tree snipers were very troublesome but were soon thinned out and forced back by harassing mortar fire, by special antisniper patrols, and by our own tree snipers. At night our men were not permitted to move from their slit trenches and those in the front line used hand grenades against suspicious noises. Huggins was our main position and headquarters of the regiment. Fisk consisted of two smaller perimeters, one on each side of the road. The enemy used no artillery or planes and his defenses were in such dense jungle that fear of casualties among his own men from tree bursts prevented effective use of his 4o-mm mortars. Consequently, we had to deal only with small-arms fire and grenades.
The Japanese defenses consisted of groups of bunkers arranged about 5 yards apart in circular or oval patterns on both sides of the road.[1] Automatic weapons were sited to fire 6 to 8 inches above the ground and along fire lanes so carefully cleared that little disturbance of the jungle was apparent. Around the perimeters were trip wires and vines attached to warning rattles. Enemy patrols and snipers were active on all sides. During the 7 weeks of stalemate preceding the arrival of the 163d Regiment, American and Australian patrols had discovered that there were several Japanese defensive positions along the Soputa–Sanananda Road, but no clear understanding of their nature or extent had been gained.
Opening Up the Cape Killerton Trail (4–15 January)
Between 4 and 7 January, patrols found that just north of Huggins there were two enemy perimeters: "Q" on the west and "R" on the east of the road. At noon on the 8th, after a 15-minute preparation by artillery, mortars, and machine guns, B and C Companies attacked Perimeter "R." C Company attacked southward from the supply trail leading to Fisk but was stopped in front of "R" by a swamp which was more than waist deep as the result of heavy rain during the preceding night. B Company advanced northward from Huggins but had made only some 20 yards when it came under heavy cross fire. Here it dug in, about half way between Huggins and "R."
- ↑ A typical perimeter, known as "Q," which was on the west side of the road between Huggins and Fisk, is illustrated in Sketch No. 5, p. 71.
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