The 2d battalion, vanguard of the 5th Marines, completed its move from the east coast of the Chosin Reservoir to Yudam-ni during the afternoon and evening of 26 November. After deploying his command south of the village, Lieutenant Colonel Roise and his S-3, Major Theodore F. Spiker, made a reconnaissance in preparation for the next day’s attack.[370] [370] 2/5 _HD, Nov 50_, 8–9. Yudam-ni lies in the center of a broad valley surrounded by five great ridges, named in relation to their direction from the village: North, Northwest, Southwest, South, and Southeast. Beginning at the rim of the valley, each of these ridges extends several thousand yards and includes many peaks, spurs, and draws, certain of which took on special significance as the crisis at Yudam-ni unfolded. A finger of the Chosin Reservoir reaches toward Yudam-ni in the valley between North and Southeast Ridges. The other four corridors radiating from the valley are highway routes. Lieutenant Colonel Roise surveyed the westerly road, which leaves Yudam-ni between Northwest and Southwest Ridges. His assigned objective encompassed distant spurs of these heights, bordering the road about a mile and a half west of the village.[371] [371] 5thMar _OpnO 39-50_, 26 Nov 50. The 7th Marines (-) was disposed in perimeter around Yudam-ni on terminal hills of four of the five ridges: D and E Companies (attached to 1/7) on North Ridge, 3/7 on Southwest, and 1/7 on South and Southeast.[372] Since the high ground occupied by 3/7 overlooked the route of attack and Roise’s objective, Colonel Litzenberg[373] later in the day specified a new destination for 2/5, a pass ten miles west of Yudam-ni. It was a big order, but Litzenberg’s troops would support the 5th Marines’ outfit by making limited advances along the skylines of Northwest and Southwest Ridges. With this protection on his flanks initially, Roise could concentrate more strength for the drive through the low ground.[374] [372] The transport priority given the move of the 5th Marines prevented H&S and Weapons (-) Companies from moving to Yudam-ni. Fox Company moved to Toktong Pass on the 27th while How Battery of 3/11 remained at Hagaru to support Fox Company. The two rifle companies of 2/7 at Yudam-ni were assigned to 1/7 for operational control. MajGen H. L. Litzenberg Comments, 19 and 20 Jul 56; LtCol W. D. Sawyer Comments, 7 Sept 56. [373] Col Roise states that he was attached to the 7th Marines in the absence of the Commanding Officer, 5th Marines. The record does not indicate a formal attachment. Col Litzenberg appears to have acted in his capacity as senior officer present. See Col R. L. Murray Comments, n. d.; Col H. S. Roise Comments, n. d.; LtCol H. J. Woessner Comments, 13 Nov 56.