The United Nations was created on June 26, 1945. Officially going into effect on October 24, 1945 UN Charter was established to maintain peace and security, and promote international cooperation. This charter organized the United Nations to comprise of six principal organs including a General Assembly consisting of representatives from all member states and a Security Council with veto power. Growing from the original members, the United Nations now consists of 193 member countries. This lesson provides video clips exploring the structure of the United Nations including the General Assembly, the Security Council, the International Court of Justice and the different programs and agencies.