The United Nations formed in 1945. Established following World War II, its primary purpose is to promote international cooperation and prevent future conflicts. The UN was created to address the atrocities of the war and establish a framework for global dialogue and peacekeeping efforts. Initially founded by 51 countries, it has since expanded to include 193 member states. The UN plays a critical role in addressing various global issues, including human rights, international law, and humanitarian aid, while also providing a platform for countries to collaborate on shared challenges.