The formation of the United Nations in 1945 was significant for global governance as it aimed to promote international peace and cooperation following the devastation of World War II. The UN provided a platform for dialogue among nations, helped address humanitarian crises, and facilitated the establishment of international law. Its founding principles emphasized the importance of human rights and collective security, making it a cornerstone for future diplomatic relations. The UN's specialized agencies, such as the World Health Organization and UNESCO, further underscore its vital role in addressing global challenges collaboratively.