500
The United Nations Command was the active combat element that fought in the Korean War against north Korea. Excluding south Korea, the US, and the UK, name five other countries who were combatant members of the UNC.
Republic of Korea (South Korea) – 590,911
United States – 302,483
United Kingdom – 14,198
Philippines – 7,468
Thailand – 6,326
Canada – 6,146
Turkey – 5,453
Australia – 2,282
New Zealand – 1,385
Ethiopia – 1,271
Greece – 1,263
France – 1,119
Colombia – 1,068
Belgium – 900
South Africa – 826
Netherlands – 819
Luxembourg – 44