International law plays a pivotal role in governing state behavior by establishing a framework of norms, treaties, and agreements that regulate interactions between nations. It aims to promote peace, security, and human rights while addressing issues like trade, conflict resolution, and environmental protection. Compliance with international law is largely voluntary; however, countries often adhere to it to maintain their reputation and foster diplomatic relations. Institutions like the United Nations are critical for enforcing international law, facilitating dialogue, and mediating disputes, thus contributing to global stability.