Papal Diplomacy and the Quest for Peace will: - introduce the reader to the Holy See and its long relationship with the international order- examine the institutional framework within which the Holy See has engaged temporal sovereigns through international organizations- analyze the similarities and differences as to how the spiritual and temporal sovereigns conduct themselves in these organizations- present the case for why the Holy See should continue in its labor in the venue of international organizations to ensure that the voices of all, not just some, human beings are heard.