[374] 7thMar _SAR_, 20; 2/5 _SAR_, 14; 2/5 _HD, Nov 50_, 8–9; Litzenberg Comments, 19 and 20 Jul 56; Sawyer Comments, 7 Sep 56. Roise Comments. Nightfall of 26 November was accompanied by an abrupt temperature drop to zero degrees Fahrenheit. The north wind screamed across the frozen reservoir and lashed the Marines on the valley floor and hillsides around Yudam-ni. At 2200, a group of half-frozen company commanders gathered within the flapping walls of Roise’s blackout tent to receive their orders. The attack was to start at 0800 the next morning, with 2/5 passing through the 7th Marines in a column of companies. Recoilless rifles and 4.2-inch mortars of the 5th Marines would support the advance, along with First Lieutenant Wayne E. Richards’ 2d Platoon of Able Company Engineers. Two Corsairs of VMF-312 and a spotter plane from VMO-6 were to provide aerial reconnaissance and close air support.[375] [375] 2/5 _SAR_, 14. In other wind-blown tents, 7th Regiment officers learned of their missions as assigned by Colonel Litzenberg. The 3d Battalion would move farther along the crest of Southwest Ridge on 27 November and also seize the terminal peak, Hill 1403, of Northwest Ridge across the MSR, in order to support 2/5’s attack more effectively. Dog and Easy Companies were to patrol North Ridge and the west coast of the Reservoir, while 1/7 scouted both South and Southeast Ridges and their adjoining corridors. Particular attention would be paid to the valley running southward between these hill masses, for therein lay the vital road to Hagaru.[376] [376] 7thMar FragO, 1850 26 Nov 50; 7thMar _SAR_, 20–21. [Illustration: YUDAM-NI MAP-12 ] _Marine Attack on 27 November_ The Yudam-ni perimeter was quiet throughout the long, frigid night of 26–27 November. At dawn the basin and hillsides came alive with parka-clad figures stamping and clapping life back into leaden limbs. Gradually they began to cluster around small fires to thaw out the morning rations and their weapons. Companies G and H of 3/7 jumped off in the attack at 0815, the former to extend the foothold on Southwest Ridge, the latter to seize Hill 1403, terminal height of Northwest Ridge. Led by Captain Leroy M. Cooke, How Company advanced unopposed and secured its objective by midmorning.[377] Captain Cooney’s Company G moved rapidly 1200 yards along the crest of Southwest Ridge and occupied a commanding peak, Hill 1426, at 0845 without meeting opposition. But when Cooney resumed the advance, his troops almost immediately came under fire from enemy positions on another peak 500 yards away.[378] [377] Cooke had taken over the company on 12 November, and Lieutenant H. H. Harris reverted to ExecO.