Answer:
Option A) Korean War is correct.
Explanation:
It was part of the Second Chinese Offensive to drive UN forces (American troops fought in Korea as United Nations forces) out of North Korea. It was fought in November-December 1950. It´s also known as the Battle of Chosin Reservoir.
I believe it's the Treaty of Echota
You can't message people unless you are a Mod. Honestly it is kinda dum.
the question is not very clear