International law refers to a set of rules and agreements that govern the relationships between countries. It helps maintain peace and security by providing guidelines for how nations should interact, resolve disputes, and cooperate on global issues. Key sources of international law include treaties, customary practices, and judicial decisions from international courts. One important aspect of international law is human rights, which protects individuals from abuses by their own governments. Organizations like the United Nations play a crucial role in promoting and enforcing these laws, ensuring that countries adhere to their commitments and respect the rights of people worldwide.