Give an Who, what, when, where, why, how summary of the Korean War

World War II divided Korea into a Communist, northern half and an American-occupied southern half, divided at the 38th parallel. The Korean War (1950-1953) began when the North Korean Communist army crossed the 38th Parallel and invaded non-Communist South Korea. As Kim Il-sung's North Korean army, armed with Soviet tanks, quickly overran South Korea, the United States came to South Korea's aid. General Douglas MacArthur, who had been overseeing the post-WWII occupation of Japan, commanded the US forces which now began to hold off the North Koreans at Pusan, at the southernmost tip of Korea. Although Korea was not strategically essential to the United States, the political environment at this stage of the Cold War was such that policymakers did not want to appear "soft on Communism." Nominally, the US intervened as part of a "police action" run by a UN (United Nations) international peace- keeping force; in actuality, the UN was simply being manipulated by US and NATO anti-Communist interests.

Explanation:

A civil war between North America and South America happened from June 25, 1950 to July 27, 1953 which North and South Korea, Soviet Union, United States, China, Great Britain Canada, France, Belgium, The Netherlands, Columbia, Ethiopia, South Africa, New Zealand, Turkey, Greece, Thailand, Philippines, Luxembourg, Norway, Sweden, Denmark, India, Italy were involved in the war. This war happened in North and South Korea because North Korea wanted to reunite the two Korea's under communist rule.  

Explanation:

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the answer wold be b) travel among nations should be regulated by an international organization