International organizations facilitate cooperation between nations by providing platforms for dialogue, conflict resolution, and collaboration on global issues. Institutions like the United Nations foster diplomatic relations, promote peacekeeping, and address challenges such as climate change and public health. They enable countries to coordinate actions on various fronts, from trade to security, enhancing mutual interests and fostering stability. Through treaties and partnerships, these organizations help establish norms and standards that guide international relations, contributing to a more interconnected and cooperative global community.