the ROK 6th Infantry Division, which the cavalrymen and Marines on either side gradually pinched out, were on the Albany Line by dark on 12 March. Accompanying forces of the 1st Marine Division attacking astride Route 29 above Hoengsong was a recovery team from the 2nd Infantry Division detailed to search for the bodies of men and the equipment lost in that area by division forces who had been supporting the X Corps’ Operation Roundup when the PVA attacked in mid-February. By 12 March the team recovered more than two hundred fifty bodies, mostly of men who had been members of Support Force 21, and retrieved the five 155-mm. howitzers left behind when the support force withdrew. (The air strikes the support force commander had requested on the abandoned weapons either had not been flown or had not found their targets.) The team also retrieved the six M5 Tractors left behind by the support force artillery, evacuated four of the six tanks that had been lost, and recovered a number of damaged trucks that were of value at least for spare parts. In the X Corps' zone, the 2nd, ROK 5th, and 7th Divisions advanced abreast, the 2nd moving through the P’ungam-ni corridor on the left, the 7th along Route 20 on the right, and the ROK 5th over the ridges in the center. In a well-fought delaying action, KPA forces kept gains short until 11 March, when they began to withdraw above the Albany Line. Against the diminishing resistance, the 2nd and 7th Divisions each placed a regiment on the phase line on 13 March. At Corps' center, the ROK 5th Division reached the line on the following day. Immediately east, ROK III Corps reached and at some points passed above Route 20 by dark on 13 March. With forces already well above the Idaho Line in the coastal zone, ROK I Corps meanwhile made only minor adjustments to consolidate its forward positions. As of the 13th, a regiment of the ROK 9th Division and two regiments of the Capital Division occupied a line reaching northeastward from the Hwangbyong Mountain area to the coast near the town of Chumunjin. A problem meanwhile had arisen in rear of ROK I Corps when the KPA 10th Division, isolated behind Eighth Army lines since January, opened a bid to return to its own lines. Though much reduced by efforts of the 1st