Official biography

Dr. John L. Clarke

Professor of National Security
George C. Marshall European Center for Security Studies

Dr. John L. Clarke is Professor of National Security at the George C. Marshall European Center of Security Studies in Garmisch-Partenkirchen, Germany.

Dr. Clarke is recognized as a leading expert on the role of military forces in homeland security and homeland defense issues. He has developed and taught numerous courses on homeland security, crisis management, and stability operations, as well as developing scenario-based exercises and simulations. He led a major research project on European Approaches to Homeland Security. His most recent book is, "What Should Armies Do? Armed Forces and Civil Security."

In a military career spanning more than a quarter century, Dr. Clarke held numerous positions of great responsibility in the national security organizations of the United States. A political-military affairs expert, he was responsible for developing the U.S. Army’s doctrine for operations into the next century. In particular, he developed the Army’s doctrinal response for operations such as Bosnia. In addition, Dr. Clarke served as a senior planner and crisis manager in the joint staff in the U.S. Department of Defense, as well as the executive assistant to the commanding general, Fifth Army. A former special forces officer, Dr. Clarke commanded elite military units (parachute, Special Forces, Ranger, armored infantry) in operations in Europe, Asia, Africa and the U.S.

Dr. Clarke holds a doctorate in political science from the University of Salzburg, Austria, a Brévet from the Ecole Supérieure de Guerre in Paris, an M.A. from the University of Southern California, a diploma from the U.S. Army Command and General Staff College and a B.A. from Norwich University. He held a post-doctoral fellowship at Harvard University and was an Olmsted Scholar.

Dr. Clarke has led projects in 50 countries worldwide, speaks several languages, and has lived abroad for more than 25 years. He has published numerous articles on defense and security issues appearing in such publications as EuroFuture, Survival, Defense News, Magazine der Bundeswehr, European Security, Homeland Security, Homeland Defense and Journal of Homeland Security. He is a frequent contributor on German and Austrian radio and television.



  • Should We Just Let the Army Do It? The National Interest, September/October 2019 
  • The Role of Armed Forces in Border Security in Military and Defence Aspects of Border Security in South East Europe: Human and Societal Dynamics-Series E., NATO Science for Peace and Security Series. Amsterdam: IOS Press 2018    
  • Managing Russian Information Operations Loisach Group Notes Number 4. George C. Marshall European Center for Security Studies, Garmisch-Partenkirchen, Germany, 2018.
  • What Should Armies Do? Armed Forces in Civil Security London; Ashgate Publishers, 2014   
  • Transatlantic Homeland Security: Is Security Divisible? Homeland Defense Journal, September 2007
  • Ein Transatlantischer Statusbericht Homeland Security, 2-2007
  • Armies in Homeland Security: American and European Perspectives; Washington, DC: National Defense University Press, 2006
  • What Role for Which NATO? EuroFuture, Spring 2006
  • What Roles and Missions for Europe's Military and Security Forces in the 21st Century? Marshall Center Papers, No. 7, August 2005
  • The Role of Armed Forces in Homeland Security: European and American Experiences and Practices Connections: The Quarterly Journal, Fall 2005
  • European Homeland Security: Promise, Progress and Pitfalls in Securing the European Homeland, Bertelsmann Stiftung, August, 2005
  • Was Force the Answer? Europeans Missed Mark on Iraq Defense News, July 26, 2004
  • Is Transatlantic Security Divisible?, EuroFuture, Summer 2004
  • Europianet dhe Terrorizmi Katastrofik, Sot Today Tirana, May 4, 2004
  • Homeland Security and Europe EEZ International, May 2004
  • Specialized Units for Peace Operations and Homeland Security., at
  • Europeans Must Rethink Homeland Security Defense News, March 22, 2004
  • The U.S., Europe and Homeland Security: Seeing Soft Security Concerns Through a Counterterrorist Lens, European Security, Summer 2004
  • Securing the European Homeland Journal of Homeland Security, September 2003
  • Schlüssige Reaktion Magazine der Bundeswehr, September 2002
  • Coast Guard Counterpart is Best Option for Effective Homeland Defense Army Times, May 6, 2002
  • Does America Need a Gendarmerie? Defense News, April 8-14 2002
  • The Wrong Tool: Post Sept 11 World Blunts ERRF Promise Defense News, November 4 2001
  • Der Konflikt im Wandel der Zeit Österreichische Militärische Zeitschrift. Vol 2 (March-April 1997)
  • Friedensoperationen der US-Armee Österreichische Militärische Zeitschrift Vol 2 (March-April 1996)
  • The Enforcement Specialists, Armed Forces Journal International, February 1995
  • Which Forces for What Peace Operations Proceedings of the U.S. Naval Institute. February 1995
  • Misguided Mandates Mar U.N. Peacekeeping. The Wall Street Journal/ Europe, 10 January 1995
  • FM 100-23: Peace Operations Washington, DC: HQ Department of the Army 1994
  • Retirees Could Provide a Hand to Smaller Army, Army Times, 30 August 1993
  • Reductions Mandate New Ways to Train, Army Times. 25 May 1992
  • No Need to Fear Unified Germany, Defense News. 23 April 1990
  • Unconventional Bid; Offer Soviets Dollars for Tanks , The Wall Street Journal/Europe. 23 November 1989
  • Kritische Darstellung des Krisenentscheidungsprozesses im Falle einer Mobilmachung in der Nato, (Ph.D. Dissertation) University of Salzburg (1989)
  • New Directions for Franco-German Military Cooperation, Parameters, Vol. 18, no. 3, September 1988
  • Politique Europeenne de Defense après les Accords Sovieto-Americains, Paris, Ecole Superieure de Guerre, 1988)
  • Die Reservekräfte des Amerikanischen Heeres. Österreichische Militärische Zeitschrift. no. 3, (May-June 1987)
  • Reflexion Personnelle de la Critique de Clauswitz par Liddell Hart, Reflexions Strategiques, January 1987
  • Austria's Raumverteidigung: Central Front Solution? Armed Forces Journal International, September 1988
  • Junior Officers and the Joint Staff, Army, November 1983
  • NATO, Neutrals and National Defense, Survival, November-December 1982
  • Money, Machines and Miles: Redressing POMCUS Deficiencies, Armed Forces Journal International, November 1982
  • US Missiles or NATO Missiles?, Letter of the University of Southern California School of International Relations, Fall 1982
  • Confidence Course, Infantry. July-August 1980
  • NATO Standardization: Panacea or Plague? Military Review. April 1979
  • Consensus by Coercion: Soviet Influence in East European Armies, published in conjunction with the University of Southern California School of International Relations 1979 Symposium
  • Bayonets at Midnight, Military Review, November 1976
  • Political and Strategic Implications of US Troop Withdrawals in Europe, Norwich University Honors Papers Collection, May 1974