Geoffrey Sloan is Associate Professor of International Relations and Geopolitics in the Department of Politics and International Relations, University of Reading, formerly Head of the Strategic Studies and International Affairs Department, Britannia Royal Naval College, Dartmouth. He has published three previous monographs: Geopolitics of United States Strategic Policy (1988) The Geopolitics of Anglo-Irish Relations (1997) Geopolitics, Geography and Strategic History (2017).