What type of organizations are formed by formal agreements between two or more governments?

Intergovernmental Organizations (IGOs) are entities created by formal agreements between two or more governments. These organizations are established to promote cooperation on various issues, whether they relate to economic, political, or social matters. Examples include the United Nations, NATO, and the World Health Organization.

IGOs work to achieve common objectives and can provide a platform for collaborative initiatives and decision-making among member states. Their activities often include fostering diplomatic relationships, addressing global challenges, and facilitating international laws and treaties.

Nongovernmental Agencies, Multinational Forces, and USG Departments and Agencies, while important in various contexts, do not operate on the same foundational basis of intergovernmental agreements. Nongovernmental agencies generally operate independently from government influence, multinational forces are typically coalitions of military units from multiple countries but do not provide a structured organizational framework like IGOs, and USG departments and agencies are specific to the United States government, thus lacking the international agreement aspect.