Regional Intergovernmental Organization (IGO): An intergovernmental organization that operates within a specific geographic region, such as the African Union, to address regional issues and promote cooperation among member states.
Supranational Organization: An international organization that has authority and influence that transcends individual nation-states, allowing it to make decisions and take actions that are binding on its member states.
Collective Security:A system where member states agree to come to the defense of any member state that is attacked, with the goal of preventing and resolving conflicts through collective action.