United Nations trust territories was created in 1946.

United Nations trust territories ended in 1994.

United Nations trust territories were the successors of the remaining League of Nations mandates and came into being when the League of Nations ceased to exist in 1946. All of the trust territories were administered through the UN Trusteeship Council. The one territory not turned over was South-West Africa, which South Africa insisted remained under the League of Nations Mandate, and which eventually gained independence in 1990 as Namibia. The main objection was that the trust territory guidelines required that the lands be prepared for independence and majority rule.

Britain and Mexico

The Trusteeship Council a now-defunct organ of the United Nations that administers territories that were not self-governing when the UN was established.