The United Nations (UN) was created after World War II in 1945 to promote international cooperation and maintain peace and security among nations. Formed in the aftermath of the war, the UN aimed to prevent future conflicts through collective decision-making and dialogue. Its founding charter emphasized human rights, economic development, social progress, and humanitarian efforts. The UN has played a crucial role in mediating conflicts, providing humanitarian assistance, and facilitating international treaties. Its establishment marked a significant shift toward multilateralism in foreign policy and remains a cornerstone of global governance today.