The United Nations (UN) coalition force led by the United States was formed to support South Korea against the communist North Korean and Chinese forces. The support of the countries fighting the North Koreans during the Korean War refers to the nations that contributed military forces to the UN coalition. These stamps represent the total of 21 countries participated in the UN coalition, including the United States, United Kingdom, Canada, Australia, France, Belgium, the Netherlands, New Zealand, Turkey, Greece, Thailand, the Philippines, Ethiopia, Colombia, South Africa, and others. These countries provided troops, naval and air support, as well as medical and logistical support to the South Korean and American forces.
These stamps below issued in 1951 - 1952 represent the UN coalition,