What good thing has the UN done around the world?

The United Nations has played a crucial role in promoting peace and security globally, mediating conflicts and facilitating peace agreements in various regions. It has also made significant contributions to humanitarian aid, providing assistance to millions affected by natural disasters and conflicts through agencies like UNICEF and the World Food Programme. Additionally, the UN has advanced global health initiatives, such as eradicating smallpox and combating diseases like HIV/AIDS and malaria, improving health outcomes worldwide.