The USSR
In Asia, as in Europe, Truman tried to contain the spread of communism. The Korean War inaugurated what became the U.S. policy of containment – the idea that communism could not be allowed to spread beyond a certain geographical point. Without asking for a declaration of war, Truman committed U.S. troops as part of a United Nations “police action.” In actuality, the Korean War was carried out by predominantly American forces under the command of General Douglas MacArthur. By late September, MacArthur’s troops had forced the North Koreans back past the thirty-eighth parallel, the dividing line between North and South Korea. Truman authorized an offensive drive across this divide and toward China, but MacArthur was repelled by Chinese forces in November. Fighting stabilized around the previous border, and in the spring of 1951 Truman sought to scale back the war effort and negotiate peace, despite MacArthur’s proposals for bombing attacks north of the Yalu River in China. After a month of publicly denouncing the administration’s policy of restraint, MacArthur was relieved from duty in April 1951. Limited fighting would continue until June 1953, when an armistice restored the prewar border between North and South. U.S. forces had lost almost 55,000 lives. With this, you can say that the country is now fairly divided among those 2 adjacent countries and the situation has been a bit more calm since then.