Article 84 United Nations Charter

Article 84 of the United Nations Charter is under Chapter XII: International Trusteeship System

Article 84

It shall be the duty of the administering authority to ensure that the trust territory shall play its part in the maintenance of international peace and security. To this end the administering authority may make use of volunteer forces, facilities, and assistance from the trust territory in carrying out the obligations towards the Security Council undertaken in this regard by the administering authority, as well as for local defence and the maintenance of law and order within the trust territory.

See also: Article 83 United Nations Charter