The forerunner of the United Nations was the League of Nations, an organization conceived in similar circumstances during the first World War, and established in 1919 under the Treaty of Versailles "to promote international cooperation and to achieve peace and security."

What is Canada's role in the UN?
Canada and the United Nations. Canada has been active at the United Nations since its foundation in 1945 and played a key role in drafting the UN Charter - an international treaty that sets out basic principles of international relations.