MAIN ORGANS OF UNITED NATIONS by keypoint The General Assembly The Secretariat The Security Council Trusteeship Council The Economic and Social Council International Court of Justice Specialized Agencies. Others are Viewing: MAIN ORGANS OF OPEC UNITED NATIONS ORGANIZATION (UNO) SPECIALIZED AGENCIES OF THE UNITED NATIONS ORGANIZATION: UNITED NATIONS INTERNATIONAL CHILDREN EMERGENCY FUND (UNICEF) THE ROLE OF NIGERIA AS A MEMBER OF THE UNITED NATIONS ORGANIZATION ORGANS OF AU MAJOR ORGANS OF OAU