The primary purpose of the United Nations, established in 1945, was to promote international cooperation and prevent future conflicts after the devastation of World War II. Created to foster peace and security, the UN aims to provide a platform for dialogue among nations, facilitate negotiations, and promote human rights and social progress. The organization also addresses global challenges such as poverty, health, education, and environmental sustainability. With its various programs and specialized agencies, the UN works towards maintaining peace, facilitating development, and promoting international law, playing a crucial role in shaping the post-war global order.