The primary role of the United Nations (UN) is to promote international cooperation and maintain global peace and security. Established in 1945, the UN facilitates dialogue among nations to prevent conflicts, mediate disputes, and provide a platform for member states to address shared challenges. The organization also works on various issues including human rights, sustainable development, humanitarian aid, and environmental protection. Through its various agencies, such as the World Health Organization (WHO) and UNICEF, the UN aims to improve living standards and ensure respect for human rights globally.