The United Nations was founded in 1945 to replace the League of Nations and maintain peace after World War II. It gives certain powers like veto rights to its five permanent members: the US, Russia, China, UK, and France. The UN can authorize peacekeeping forces and intervene to restore peace with Security Council approval. However, during the Cold War the veto rights of the US and USSR disrupted peace efforts. Now with 193 member states, the UN headquarters is in New York but it has other agencies like the one in Geneva led by Secretary-General Antonio Guterres since 2017.