MPhil and DPhil in International Relations, University of Oxford. 1987-2000, Commissioned Officer, US Naval Reserve (Intelligence); 1990-97, Senior Fellow, Director of Studies, and Deputy Director, Institute for National Strategic Studies, National Defense University; 1998-2001, Director of Studies, US Institute of Peace; 2001-03, Assistant Administrator, Policy and Programme Coordination, US Agency for International Development; 2003-05, Senior Vice-President and Director of Research, Centre for Strategic and International Studies; 2005-07, Director, Research and Editor, Adelphi Papers, International Institute for Strategic Studies; 2008-09, Director, Institute for National Strategic Studies and Director, Centre for the Study of Chinese Affairs. Former: Adjunct Professor, Paul H Nitze School of Advanced International Studies, Johns Hopkins University; Visiting Professor, Woodrow Wilson School of Government and Foreign Affairs, University of Virginia; Founding Executive Editor, Joint Force Quarterly; Associate Editor, Strategic Review. Author.