International law is a set of rules and principles governing the relations between nations. It encompasses treaties, customary practices, and international organizations. It governs issues like diplomacy, human rights, armed conflict, trade, and environmental protection. International law seeks to maintain peace, resolve conflicts, and promote cooperation among states. It includes foundational treaties like the United Nations Charter, which outlines principles of state sovereignty and the maintenance of international peace. International law is essential for creating a rules-based global order, facilitating diplomatic relations, and addressing cross-border challenges, ensuring that nations adhere to shared standards and commitments.