As part of the celebrations and educational activities organized for the Greek National Day of March 25, our 10th-grade students (A' Lyceum) had the opportunity, on Wednesday, March 11, to attend a lecture in the school auditorium by Professor Sotiris Roussos, Professor of International Relations and Religion in the Middle East and the Mediterranean.During his presentation, Professor Roussos discussed the enduring importance of International Law and the development of international systems from the beginning of the Greek Revolution to the present day. He explored the historical evolution of the international order and its influence on contemporary global affairs.Following the lecture, students participated in an open discussion, asking questions and sharing thoughts on current international geopolitical developments.Professor Sotiris Roussos is a 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 the Peloponnese. He also serves as Scientific Director of the Center for Mediterranean, Middle Eastern and Islamic Studies (CEMMIS).From 1997 to 2003, he worked as a Middle East Expert for the Greek Ministry of Foreign Affairs. He has participated in international initiatives related to water issues, Palestinian refugees, and Jerusalem under the auspices of the European Union. In 2009, he was appointed Representative of the OSCE Chairmanship for the Mediterranean Partners for Cooperation. In 2012, he served as a Visiting Scholar at the University of California, Santa Barbara (UCSB), and from 2015 to 2018 he coordinated the Center for Religious Pluralism in the Middle East (CRPME).He has authored numerous books and articles on revolutions, uprisings, regional security in the Middle East, political Islam, and Christian communities in the region. His latest book, The Middle East and the War in Gaza, has been published by Erma Publications.