International law plays a significant role in governing state relations by establishing legal frameworks that promote peace and cooperation among countries. It regulates issues like human rights, trade, and environmental protection, providing guidelines to facilitate conflict resolution and diplomatic engagement. Treaties, conventions, and customary law create bound obligations, shaping states' behavior on the global stage. The effectiveness of international law relies on compliance and enforcement, often reflecting the political will of member states. Thus, it serves as both a stabilizing force and a mechanism for addressing transnational challenges.