The United Nations was founded in 1945, following the end of World War II. The establishment of the UN was intended to promote international cooperation and prevent conflicts, with an aim to foster peace and security globally. The organization originated from the League of Nations but has since evolved to address a wide range of issues, including human rights, economic development, and humanitarian aid. The UN now comprises 193 member states and operates various agencies that focus on diverse areas such as health, education, and environmental protection, playing a critical role in global governance.