United States passed a sponsored resolution calling for military sanctions against North Korea.
             Three days after the conference, U.S. President Harry S. Truman ordered combat forces stationed in Japan. American forces combined with combat contingents from Australia, Belgium, Luxembourg, Canada, Colombia, Ethiopia, France, Great Britain, Greece, the Netherlands, New Zealand, the Philippines, South Africa, Thailand, and Turkey, with medical units from Denmark, India, and Sweden, were placed under a unified UN command headed by the U.S. commander in chief in the Far East, General Douglas MacArthur (Dvorchak, 7-11).
             The participating ground forces of the U.S. and South Korea was grouped in the U.S. Eighth Army. The action was unique because neither the UN nor its predecessor, the League of Nations, had ever used military measures to repel an aggressor. Even after Truman committed American ground forces to Korea, the war continued to go badly. On the first day of battle on Korean grounds report states nearly 150 American men died, injured or were missing. The North Koreans had captured Seoul, the capital of South Korea, and the Americans and South Koreans had been pushed back to a small perimeter around the southern port city of Pusan, extending about 129 km (about 80 mi.) from north to south and about 80 km (about 50 mi.) from east to west (Shinn, 85-90).
             American reinforcements were able to hold their position in Pusan for a while, however, and on Sept. 15, 1950, General MacArthur launched a brilliant amphibious invasion behind enemy lines. He and his Tenth U.S. Corps troop striked at the port city of Inchon on South Korea's west coast, about 40 km (about 25 mi.) west of Seoul. In a coordinated move, UN forces broke out of the Pusan perimeter. Very quickly the North Koreans were routed and forced above the 38th parallel. Sensing an opportunity not only to stop but also to roll back Communist expansion, President Truman a...