Anticipating the potential for conflict as early as the summer of 1950, the United States immediately joined forces with Britain, France and other countries to rescue South Korea after north Korea sent troops. The initial goal was to unify the Korean Peninsula and establish a South Korean state. Since North Korea was bordering China and the Soviet Union, the question of how far and where the war would go, and what to do if China and the Soviet union were directly involved, was hotly debated within the United States and the United Nations forces in the fall of 1950. Finally, in early September 1950, the National Security Council of the United States provided Truman with an overall framework of military plan, NSC-81/1, which made it clear that: 1) In any case, it would only reach the yalu River and not enter the territory of China and the Soviet Union; 2) If The Chinese and Soviet armies engaged in a large scale and occupied North Korea, the U.S. army could only reoccupy the area south of the 38th parallel and would not be allowed to return to the north. 3) If Chinese troops crossed the 38th parallel and crossed into South Korea, the United States could not have an all out war with China first, and secondly the United States could use its naval and air forces to attack the Chinese mainland, which would stop China from advancing in Korea and brand China as an aggressor. In this way, the US had planned to divide the Korean peninsula on the 38th parallel before the war.
--
修改:computec FROM 223.104.42.*
FROM 223.104.42.*