The UN aims to maintain international peace and security by preventing threats to the peace like aggression. It also aims to develop friendly relations between nations, achieve international cooperation in solving economic, social and humanitarian issues, and promote respect for human rights. The UN Charter stipulates that all member nations must act in accordance with principles like sovereign equality, fulfilling their Charter obligations, settling disputes peacefully, refraining from the threat or use of force, and not intervening in domestic issues unless related to international peace and security.