Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. UN Marks 75th Anniversary in Atmosphere of New Challenges Margaret Besheer NEW YORK CITY - The United Nations marked its 75th anniversary Monday amid a global pandemic and other serious challenges that the secretary-general said highlight the urgency for stronger international cooperation. "The COVID-19 pandemic has laid bare the world's fragilities. We can only address them together," Secretary-General Antonio Guterres said, referencing the disease caused by the coronavirus. "Today, we have a surplus of multilateral challenges and a deficit of multilateral solutions." .