Intergovernmentalism is a political theory that emphasizes the role of sovereign states in international cooperation and decision-making, where national governments maintain control over their own policies and agreements. This approach focuses on the importance of negotiations and consensus among member states, especially within organizations like the European Union, where state interests often dictate the extent and nature of collaboration. Intergovernmentalism contrasts with supranationalism, where authority is transferred to higher governing bodies beyond national control.