Joanna Kulska is an associate professor at the Institute of Political Science and Administration of University of Opole and the director of the trinational Polish-German-French Europa Master Program. She was a fellow of the John Paul II Foundation in Rome and the Kosciuszko Foundation in New York, conducting research at the University of Chicago, and a guest professor at the Institute of Political Science at the University of Mainz. She is interested in international cultural relations, the changing role of religious factor in international relations and IR, church-state relations in Europe, civil society, peace and conflict issues, and evolution of contemporary diplomacy. Anna M. Solarz is a lecturer in the Department of Regional and Global Studies at the Faculty of Political Science and International Studies, University of Warsaw. She conducted her research, among others, at the Mershon Center for International Security Studies at Ohio State University, USA. Her field of interest is the intersection of religion, culture and politics in international relations, with a focus on theoretical aspects of research on religion in IR, regional studies, the Middle East and Israel's foreign policy, as well as the Holy See as an international actor.