The United Nations was formed in the year 1945, following the conclusion of World War II. Established to promote international cooperation and prevent future conflicts, the UN aimed to foster dialogue among nations and address pressing issues such as human rights, development, and peacekeeping. The organization was founded by 51 member states, and its headquarters are located in New York City. Since its inception, the UN has expanded to include 193 member states, tackling global challenges and fostering collaboration.