Dog Company continued up the exposed hillside. Scattered enemy shots from the top of the ridge gradually merged into a pattern of light resistance as the Marines climbed higher. Captain Milton A. Hull ordered his troops to halt, deployed his machine guns for return fire, and radioed for an air strike. Within a few minutes a flight of Corsairs swept down and worked over the ridgeline. Hull’s only assault route traversed a barren area about 50 yards from the crest. His two assault platoons, fully exposed to the enemy’s observation, inched upward by fire and movement, taking casualties, and finally reached the top. Their foothold on the ridgeline did not discourage the Red Chinese, who continued to pour fire from skillfully camouflaged positions. To prevent continued attrition among his now exhausted troops (by this time they had climbed some 1600 vertical feet from ground level over an average gradient of 25 per cent), Hull recalled the two platoons to the eastern slopes and radioed for supporting fire. This fire was not forthcoming. Company D held a line near the summit until about 2200 when Easy Company passed through to occupy a small plateau about 150 yards below the crest for the night. Meanwhile, down in the valley, Litzenberg’s “walking perimeter” completed a 1300-yard advance by 1630. Owing to the nature of the terrain, with the attendant 360-degree vulnerability, the regimental commander stipulated that the 7th Marines’ column extend not less than 4000 (the minimum distance which would allow for close-in artillery support) nor more than 6000 yards in length. This allowed sufficient depth for over-all protection, with no loss of mutual support among the three infantry battalions. Enemy resistance had flared up now and then in the course of the day, but Marine supporting arms so ruled the valley that no serious challenge by the Chinese developed. VMF-312 flew 12 close support missions in the Sudong area, and VMF(N)-513 assisted with several more. The whole precipitous skyline on either side of the regiment was blasted with 500-pound bombs, 20mm shells, and high-velocity rockets. By way of reply to the heavy shelling and bombing, Chinese mortars and at least one small artillery piece began to fire sporadically as the day wore on. A 120mm mortar round struck 1/7’s CP at 1700 and wounded three men. _CCF Counterattack at Sudong_ Although the unit commanders of the 7th Marines anticipated more fighting with the new enemy, they probably did not suspect what the night held in store when the regiment dug in at dusk on 2 November. They did not know that the 371st Regiment, 124th CCF Division, was massed to the north and west, nor that the 370th Regiment occupied high ground east of the MSR in strength--both units within easy striking distance of Litzenberg’s perimeter. The 372d Regiment, in reserve, stood poised in its hidden encampment several miles to the rear.[249]