The seventy-fifth anniversary of the founding of the United Nations in 1945 invites us to look back at the achievement of creating this new organization even before the guns had fallen silent in World War II. It also prompts us to ask: Where is the organization today? How well has it fulfilled and is it still fulfilling the high ideals of its Charter? Even more importantly, how confident can we be that what has grown into the complex UN system will not just survive but also provide its member states and the peoples of the world with the organizational structures, resources, and tools needed to address twenty-first century challenges?