in october of 1950, un forces pushed the north koreans as far north as\npusan.\nthe yalu river.\nthe 38th…

in october of 1950, un forces pushed the north koreans as far north as\npusan.\nthe yalu river.\nthe 38th parallel.\nseoul.
Answer
Answer:
The Yalu River.
Brief Explanations:
In October 1950, UN forces advanced deep into North - Korea and reached the Yalu River. The 38th parallel was the initial division line before the war escalated. Pusan and Seoul are South - Korean locations.