The significance of treaties in international relations lies in their capacity to formalize agreements between nations, thereby fostering peace and cooperation. Treaties can govern various areas, such as trade, defense, and climate change, serving as essential tools for diplomacy. They create binding obligations, enabling countries to legitimize their commitments to one another. Effective treaties can help resolve conflicts and enhance mutual understanding, while violations can lead to diplomatic tensions or conflict. The role of treaties exemplifies the complexity and interdependence inherent in modern global politics.