After the outbreak of Korean War on 25 June 1950, 16 countries (deploying / arrival order): United States, United Kingdom, Australia, Netherlands, Canada, France, New Zealand, Philippines, Turkey, Thailand, South Africa, Greece, Belgium, Luxembourg, Ethiopia and Colombia provided combat troops for South Korea and they organized the United Nations Forces.
[1] Source of statistics in this article is the official book about Korean War statistics published by South Korean Ministry of National Defense Institute for Military History in June 2014.
[2][3] Statistics in this article may differ from the statistics of each countries.
Many Mexicans and Puerto Ricans served in the United States Army during the Korean War.