As codified in the Lateran Treaties of 1929, permanent neutrality is a unique and central tenet of Vatican diplomacy. Through this lens, The Vatican and Permanent Neutrality (2022), edited by Marshall J. Breger and Herbert R. Reginbogin, traces the fast-paced 150 years of the Vatican’s spiritual and moral contributions to world affairs, starting from the fall of the Papal States in 1870 to the present day. This online event, led by the co-editors Breger and Reginbogin and featuring several of the book’s contributors, will address historical perspectives and contemporary implications of permanent neutrality, from the Holocaust and the Cold War to the current war in Ukraine. Other topics of discussion include Vatican peacemaking efforts, relationships between U.S. and foreign governments and Catholic Church leadership, and tensions between power and spirituality.