It is called Canada's "Forgotten War." Over 500 Canadians died in the United Nations' struggle to repel the communist forces that invaded South Korea on June 25, 1950. To the people they helped liberate, the Canadians were heroes. Yet those who made it home returned to an indifferent country and a government that took 40 years to officially acknowledge their sacrifice.
Called “the forgotten war”, but really, it wasn’t a war at all. Like Vietnam, there was no formal declaration of war, so it is more accurately called a military action.