Berkley Center

Marshall Breger is a professor of law at the Catholic University of America Columbus School of Law. During the George H.W. Bush administration, he served as solicitor of labor, and from 1982 to 1989 he was a special assistant to President Reagan and his liaison to the Jewish community.  Recent books include The Vatican and Permanent Neutrality (2022, ed. with Herbert Reginbogin) and The Contest and Control of Jerusalem’s Holy Sites (2023, with Leonard M. Hammer).

Dr. Suzanne Brown-Fleming is director of international academic programs for the United States Holocaust Memorial Museum's Mandel Center and author of The Holocaust and Catholic Conscience: Cardinal Aloisius Muench and the Guilt Question in Germany (1994/2016). She is an adjunct professor at Georgetown's Center for Jewish Civilization. Dr. Brown-Fleming is a 2021–22 Distinguished Fellow at the Institute for Contemporary History’s Center for Holocaust Studies in Munich and Berlin.

Dr. Massimo Faggioli is full professor in the Department of Theology and Religious Studies at Villanova University in Philadelphia. He is also columnist for Commonweal and La Croix International. Faggioli is author of many books including The Liminal Papacy of Pope Francis: Moving Toward Global Catholicity (2020) and Joe Biden and Catholicism in the United States (2021). His books and articles have been published in more than ten languages.

Rev. David Hollenbach, S.J., is the Pedro Arrupe Distinguished Research Professor in the Walsh School of Foreign Service; a senior fellow at the Berkley Center for Religion, Peace, and World Affairs; and an affiliated professor in the Department of Theology and Religious Studies at Georgetown University. His teaching and research deal with human rights, religious and ethical responses to humanitarian crises, and religion in political life from the standpoint of Catholic social thought, theology, and the social sciences. His books include Human Rights in a Divided World: Catholicism as a Living Tradition (2024), Humanity in Crisis: Ethical and Religious Response to Refugees (2019), Driven from Home: Protecting the Rights of Forced Migrants (2010) The Global Face of Public Faith: Politics, Human Rights, and Christian Ethics (2003), and The Common Good and Christian Ethics (2002). He has taught often at Hekima University College in Nairobi, Kenya, and he collaborates with Jesuit Refugee Service. From 2020 to 2022 he is a distinguished research associate with the Kellogg Institute for International Studies at the University of Notre Dame. Hollenbach is also a research associate with the Jesuit Center for Theological Reflection in Zambia. Hollenbach is a member of the Working Group on Displaced Persons and Hospitality to the Stranger, part of the Culture of Encounter Project.

Piotr H. Kosicki is associate professor of history at the University of Maryland, College Park. He holds a Ph.D. in history from Princeton University and specializes in transnational European history and the history of the Roman Catholic Church, with a particular emphasis on ideas, politics, and the international system.

Dr. Maryann Cusimano Love is a tenured professor of international relations at the Catholic University of America and an expert on international security and peacebuilding. She is a consultant to the Holy See Mission at the United Nations and a board member of the Arms Control Association and the Catholic Peacebuilding Network. She earned her Ph.D. from Johns Hopkins University, and her research focuses on just peace and just war, nuclear disarmament, religious actors and transnational networks, globalization, normative change. Recent publications include her book Global Issues Beyond Sovereignty (2020).

Dr. Herbert R. Reginbogin is a Collegiate Fellow at the Catholic University of America Institute for Policy Research. He has worked on several high-profile litigation cases and energy security issues in the Eastern Mediterranean, European Union, and the United States regarding international maritime law, international refugee issues, the destabilization of the international world order, and kleptocracy. He is co-editor of The Vatican and Permanent Neutrality (2022, with Marshall Breger).

Matthew Shadle is professor of theology and religious studies at Marymount University in Arlington, Virginia. He is also a volunteer representative for the United States Conference of Catholic Bishops at the National Council of Church's Faith and Order Convening Tables. His essay "Catholicism and International Affairs Since Vatican II" will be published in the forthcoming Oxford Handbook of Vatican II (2023).