Almond directed Smith and Barr to draw up a plan and time schedule for extricating the Army battalions east of the Reservoir. Those two generals agreed, however, that not much could be done until the Yudam-ni Marines arrived at Hagaru, and the conference ended on an inconclusive note. That same afternoon X Corps OpnO 8-50 was received. It defined the Corps mission as “maintaining contact with the enemy to the maximum capability consistent with cohesive action, oriented to the Hamhung-Hungnam base of operation.”[481] [481] X Corps _OpnO 8_, 30 Nov 50. See also X Corps _WD Sum, Nov 50_, 16–17; and CG’s Diary Extracts in X Corps _WD_ 30 Nov 50. The decision to concentrate X Corps forces in that area meant the evacuation of Wonsan. General Harris lost no time in directing MAG-12 to move from Wonsan Airfield to Yonpo. Hedron-12 and the three combat squadrons began shifting personnel and equipment at once. Transfer of the aircraft was completed on 1 December. In many instances the planes took off on combat missions from Wonsan and landed at Yonpo, so that the ground forces were not deprived of air support.[482] [482] MAG-12 _HD Nov 50_, 8; 1stMAW _HD Dec 50_; CO MAG-12 msg to Movement Report Office (MRO) Tokyo, 0805 2 Dec 50 in _ibid._ VMF-312 _HD, Dec 50_. High level naval commanders were already preparing for an evacuation of northeast Korea if matters came to the worst. Admiral Joy foresaw as early as the 28th that if the retreat of the battered Eighth Army continued, X Corps would have to choose between falling back and being outflanked. In view of the time needed to collect the enormous quantities of shipping required, he warned Admiral Doyle on that date that a large-scale redeployment operation might be necessary. Doyle in turn directed his staff to commence planning for redeployment either by an administrative outloading or by a fighting withdrawal.[483] [483] ComPhibGruOne, _Action Report for Hungnam Redeployment, December 1950_, 1. _CCF Attacks of 1 December at Hagaru_ During the early hours of darkness on 30 November, it appeared that Hagaru might have a second quiet night. Three bugle calls were heard by Item Company at 2015, and the enemy sent up a green flare an hour later. But no unusual CCF activity was reported until 2330, when small patrols began probing for weak spots in the Item Company lines. The enemy could scarcely have chosen a less rewarding area for such research. As usual, Lieutenant Fisher had built up an elaborate system of concertinas, trip flares, and booby traps; and his sandbagged foxholes and weapon emplacements afforded his men maximum protection. At midnight, when the enemy came on in strength, each successive assault wave shattered against the terrific fire power which a Marine rifle company, aided by artillery, tanks, 81mm mortars, and heavy machine guns, could concentrate.