United Nations Security Council Resolution 21, adopted unanimously at the 124th meeting of the Security Council on April 2, 1947, placed the former German Pacific Islands north of the Equator, which were formerly mandated to Japan by the League of Nations, under the Trusteeship System. The Security Council declared 16 Articles under which it had approved the terms. It declared the United States to be the Administering Authority and gave it permission to militarise the territory.