After the liberation of Seoul, the division was put back on ships and taken to the eastern side of the Korean peninsula and landed at Wonsan on 26 October. As part of X Corps commanded by Army Major General Edward Almond the division was ordered to push north towards the Yalu River as fast as possible. The then commanding officer of the division, Major General O.P. Smith, did not agree with his superiors and had become convinced that they were stretched thin and that the Chinese Forces had entered the war. He purposely slowed his advance and consolidated along the way at every opportunity. The 1st Marine Division was attacked by ten Chinese People's Volunteer Army (PVA) infantry divisions on 27 November 1950. They fought their way out of the Chosin Reservoir against seven PVA divisions suffering over 900 killed and missing, over 3,500 wounded and more than 6,500 non-battle casualties mostly from frostbite during the battle. The greater part of the PVA 9th Army was rendered ineffective as they suffered an estimated 37,500 casualties trying to stop the Marines' march out of the "Frozen Chosin". The division was evacuated from Hungnam in mid-December and then landed in Pusan.