The 3d Battalion began its withdrawal at 0800, followed 90 minutes later by the 1st. The initial phases of the maneuver were carried out without great difficulty. The first major problem came when 3/5’s last unit, George Company, pulled down from Hill 1282 (see Map 24). There the Marines had been in such close contact with the enemy that grenades were the main weapon of both sides. The problem of preventing the Chinese from swarming over the top of the ridge at the critical moment and pursuing the Marines down the slope was solved by First Lieutenant Daniel Greene, the FAC, with a dummy run by close supporting aircraft. While the first pass of the Corsairs kept the Communists down, Captain Chester R. Hermanson commenced his withdrawal. As soon as his men moved out at a safe distance he signalled to the FAC, who called for live runs of Marine air in coordination with the fires directed by the artillery liaison officer, First Lieutenant Henry G. Ammer. First Lieutenant Arthur E. House’s 81mm mortar platoon also rendered skillful support during the withdrawal.[514] [514] The description of the withdrawal of 1/5 and 3/5 is based on: 5thMar _SAR_, 26; 1/5 _SAR_, 15–16; 3/5 _SAR_, 15; LtCol R. D. Taplett and Maj R. E. Whipple, “Darkhorse Sets the Pace,” _Marine Corps Gazette_, xxxvii, no. 6 (Jun 53), 22–23; Alvarez ltr, 18 Oct 55; Taplett Comments, 9 Aug 56; LtCol J. W. Stevens, II, Comments, 25 Jul 56. [Illustration: BREAKOUT FROM YUDAM-NI 1500 to 2400 1 Dec 1950 MAP-24 ] The ancient ruse was so successful that George Company disengaged without a single casualty. Ammunition left behind by the rifle platoons was detonated just as the rockets, bombs, and napalm of the Corsairs hit the Chinese, followed by artillery and mortar shells. Hill 1282 seemed to erupt in one tremendous explosion. While Captain Hermanson’s men crossed the bridge south of the burning town, an engineer demolitions crew waited to destroy the span. The rear guard unit for the withdrawal of the two battalions was First Lieutenant John R. Hancock’s Baker Company of 1/5. He felt that his best chance would be to “sneak off” Hill 1240. Accordingly he requested that no supporting fires be furnished Baker Company, except at his request. Making very effective use of his light machine guns to cover his withdrawal with a spray of fire, Hancock disengaged without a casualty. The next stage of the regroupment was carried out in preparation for the attacks of 3/5 and 1/7. In order to clear the way on both sides of the MSR, 3/7 (minus How Company) moved out at 0900 on 1 December to attack Hill 1542 while How Company went up against Hill 1419.