Professor of International Relations and Religion in the Middle East and the Mediterranean at the Department of Political Science and International Relations of the University of Peloponnese and scientific director of the Centre for Mediterranean, Middle Eastern and Islamic Studies (KEMMIS) at the same University. In 1997-2003 he was an Expert on the Middle East at the Ministry of Foreign Affairs. He was a member of the Task Force for Water Issues and the Palestinian Refugees of the EU Special Envoy for the Middle East and of the Informal International Group on Jerusalem. In 2009 he was appointed OSCE Chairmanship Representative for the Mediterranean Partners. In 2012 he was a Visiting Scholar at the University of California, Santa Barbara (UCSB). From 2015 to 2018 he was the Coordinator of the Center for Religious Pluralism in the Middle East (CRPME). He has authored books and articles on regional security in the Middle East, political Islam and Christians in the Middle East.