North Korea / South Korea

Korea was split into north and south after World War II. North Korea became established as a Communist dictatorship by Soviet Union and Red China, after Japan was defeated. In 1950, North Korea attacked South Korea, starting the Korean War. The United Nations entered the war to defend South Korea. The Soviet Union made the mistake of walking out on the U.N. vote, allowing the measure to pass. Since declaring war was not acceptable without the approval of Congress, President Harry S Truman declared the fighting a "police action" to allow the entry of American troops. The war resulted in a stalemate, and Korea is still divided to this day.