In 1947, the United Nations established trust territories in several regions, but the three specific territories that were classified as trust territories under UN administration were:
- Trust Territory of the Pacific Islands (which included various islands, with the largest being the Marshall Islands, Micronesia, and Palau)
- Trust Territory of Somaliland (administered by the United Kingdom)
- Trust Territory of New Guinea (administered by Australia)
These territories were placed under the administration of various countries following World War II to promote self-governance and eventual independence. If you're looking for more details about each trust territory or the process, feel free to ask!