International bodies play a crucial role in national governance by promoting cooperation and establishing norms that influence states' behavior. Organizations such as the United Nations and the World Trade Organization set frameworks for international law and human rights, facilitating dialogue between nations. They help mediate conflicts, provide humanitarian aid, and support development initiatives. Additionally, international bodies can impose sanctions or offer incentives to encourage compliance with global standards, ultimately guiding nations in aligning their policies with collective goals such as peace and sustainability.