 Following Walker 's orders , most of the Eighth Army 's major units promptly broke contact with the Chinese and withdrew , but the US 2nd Infantry Division was forced to stay at Kunu @-@ ri in order to hold off the Chinese forces on the Eighth Army 's right flank . By the time the 2nd Infantry Division tried to withdraw on the night of November 29 , the two Chinese divisions attacked the US 38th Infantry Regiment . The PVA 112th Division first struck the 38th Infantry Regiment on the left flank , but the American defenses held firm , forcing the Chinese to go on the defensive . Meanwhile , the PVA 114th Division attacked the Turkish Brigade and the right flank of the 38th Infantry Regiment . The Chinese outflanked the Turks by attacking along the southern bank of the Kaechon River , then crossed the river in the UN rear areas . Upon noticing this development , Brigadier General <unk> <unk> of the Turkish Brigade ordered a withdrawal , leaving the right flank of the 38th Infantry Regiment completely uncovered . By the dusk of November 29 , Chinese had cut the road between the 38th Infantry Regiment and Kunu @-@ ri , and the Americans had to retreat by infiltrating the Chinese lines . At 4 a.m. on November 30 , the 38th Infantry Regiment crossed the Kaechon River under the cover of the 23rd Infantry Regiment and Kunu @-@ ri was under Chinese control . 
