International law enhances cooperation among states by establishing a set of rules and principles that govern interactions. It provides a framework for resolving disputes, facilitating trade, and managing global challenges such as climate change and human rights. Through treaties, conventions, and agreements, states can codify their commitments and responsibilities, fostering mutual trust and understanding. International law also promotes accountability by holding states accountable for transgressions, supporting the enforcement of norms through institutions like the International Criminal Court. Ultimately, this legal framework is essential for maintaining peace, stability, and prosperity among nations.