 
 <prompt> ```Who be di winna of di Battle of di Ch'ongch'on river? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context:``` <response>: On 25 November for Korean western front, PVA 13th Army Group attack and conquer ROK II Corps for Battle of the Ch'ongch'on River, and then scatter US 2nd Infantry Division for UN forces' right flank. UN Command run; U.S. Eighth Army's run (the longest for US Army history) na because of Turkish Brigade's successful, but very costly, rear-guard delaying action near Kunuri wey slow down PVA attack for two days (27–29 November). On 27 November for Korean eastern front, U.S. 7th Infantry Division Regimental Combat Team (3,000 soldiers) and U.S. 1st Marine Division (12,000–15,000 marines) no dey ready for PVA 9th Army Group's three-pronged encirclement tactics for Battle of Chosin Reservoir, but dem manage escape under Air Force and X Corps support fire—even though dem get about 15,000 total casualties. 