The TTPI entered UN trusteeship pursuant to Security Council Resolution 21 on July 18, 1947, and was designated a "strategic area" in its 1947 trusteeship agreement. Article 83 of the UN Charter provided that, as such, its formal status as a UN trust territory could be terminated only by the Security Council and not by the General Assembly as with other trust territories. The United States Navy controlled the TTPI from a headquarters in Guam until 1951, when the United States Department of the Interior took over control, administering the territory from a base in Saipan.
The TTPI entered UN trusteeship pursuant to Security Council Resolution 21 on July 18 1947 and was designated a "strategic area" in its 1947 trusteeship agreement Article 83 of the UN Charter provided that as such its formal status as a UN trust territory could be terminated only by the Security Council and not by the General Assembly as with other trust territories The United States Navy controlled the TTPI from a headquarters in Guam until 1951 when the United States Department of the Interior took over control administering the territory from a base in Saipan