the Pukhan to the northwest. A single air strike called down by Colonel Callaway did little to dampen the fire. Though ample cover prevented heavy casualties, Company F remained pinned until dark, then was able to withdraw south of the valley. Although the 1st Cavalry Division was due to leave the line on the 10th, General Hoge and General Palmer wanted another attack made on the dam. Hoge continued to visualize a raid; Palmer was certain that Callaway's battalion could have reached the dam on the 9th if more daylight had been available. Accordingly, while the remainder of the division began to move out of the Corps' zone on the morning of the 10th, the 7th Cavalry remained on line while the 2nd Battalion made a second attempt. Believing that the PVA did not hold the ridge in strength and perhaps had withdrawn as other delaying forces had done in other instances after a single engagement, Colonel Callaway did not change tactics. The narrowness and steep sides of the ridge in any case allowed little room for any other formation or maneuver. Again his lead company, this time Company G, was pinned down by fire from the north and north-west after crossing the road at the base of the ridge. Still without normal artillery support and now denied air support because of mist and lowhanging clouds, Callaway was unable to quiet the fire and continue north. General Palmer and Colonel Harris had expected that the 7th Cavalry, regardless of the outcome of Callaway's second attack, would be relieved by Marines immediately afterward. Harris, in fact, had allowed his 3rd Battalion to start assembling for the move to the rear. General Hoge, however, viewed Callaway's two attempts as halfhearted and ordered a "bona fide" effort against the dam before the 7th left the line. In ordering a third attempt to be made on the morning of the 11th, General Palmer authorized Colonel Harris to commit his entire regiment if he thought it necessary. Harris planned to launch a stronger effort in the belief that the PVA defense of the dam consisted of mutually supporting positions in the heights immediately northwest of the Pukhan and on the two peninsulas on which the dam abutted and that reaching the dam required simultaneous attacks in all three areas. But he believed that he had neither sufficient supplies, particularly ammunition, nor the time to accumulate