The United Nations replaced the League of Nations in 1945. The
United Nations Charter was signed on June 26, 1945 at San Francisco (
3 Bevans 1153, UN Yearbook). The
mandate of the United Nations includes peace and security, economic and social development, human rights, decolonization and international law. It is composed of
six principle organs : the General Assembly, the Security Council, the Economic and Social Council, the Trusteeship Council, the International Court of Justice, and the Secretariat. Currently there are
193 member nations.