Following failed attempts at the unification, North Korea invaded South Korea on 25 June, 1950[2] which caused the United Nations (UN) to call a resolution to protect South Korea from further aggression and occupation. The Liberal government of Australia, led by Prime Minister Robert Menzies, immediately responded to the resolution by offering military assistance. About 17,000 Australians served in Korea in between 1950 and 1953, with casualties numbering about 339 dead and 1200 wounded.[3]