members - (19) Argentina, Bolivia, Brazil, Canada, Chile, Croatia, Ecuador, France, Guatemala, Jordan, Morocco, Nepal, Pakistan, Paraguay, Peru, Philippines, Sri Lanka, US, Uruguay

United Nations Truce Supervision Organization (UNTSO): established -
June 1948

aim - to supervise the 1948 Arab-Israeli cease-fire; currently supports timely deployment of reinforcements to other peacekeeping operations in the region as needed; initially established by the UN Security Council

members - (23) Argentina, Australia, Austria, Belgium, Canada, Chile,
China, Denmark, Estonia, Finland, France, Ireland, Italy, Nepal,
Netherlands, NZ, Norway, Russia, Slovakia, Slovenia, Sweden,
Switzerland, US

United Nations Trusteeship Council: established on 26 June 1945, effective on 24 October 1945, to supervise the administration of the 11 UN trust territories; members were China, France, Russia, UK, US; it formally suspended operations 1 November 1995 after the Trust Territory of the Pacific Islands (Palau) became the Republic of Palau, a constitutional government in free association with the US; the Trusteeship Council was not dissolved

United Nations University (UNU): established - 3 December 1973

aim - to conduct research in development, welfare, and human survival and to train scholars

members - (24 members of UNU Council and the Rector are appointed by the Secretary General of the United Nations and the Director General of UNESCO)

Universal Postal Union (UPU): established - 9 October 1874, affiliated with the UN 15 November 1947; effective - 1 July 1948

aim - to promote international postal cooperation; a UN specialized agency