One of the unfortunate things about the many US casualties at Chosin, is that the battle could have been avoided. After MacArthur’s brilliant landing at Inchon, which effectively outflanked the North Korean army, and would have quickly ended the war, MacArthur ignored intelligence warnings to steer clear of the Chinese border with North Korea.
As a result, the Chinese poured across the border catching US forces by surprise at Chosin, extending the war for more than a year, with thousands of additional casualties. MacArthur’s decision to ignore intelligence ultimately got him removed by President Truman. General Mathew Ridgeway was then tasked with the painstaking process of fighting his way out of a hole, which the US did, ultimately ending at the 38th parallel, where the two Koreas remain divided to this day.