Vice Admiral Roberto Cesaretti is commander of Operation Active Endeavour.

Ryan C. Hendrickson is associate professor of political science at Eastern Illinois University and author of the forthcoming book Diplomacy and War at NATO: The Secretary General and Military Action After the Cold War (University of Missouri Press).

Andrei Kelin is a departmental director at the Russian Ministry of Foreign Affairs.

Dagmar de Mora-Figueroa works on terrorism-related issues in NATO's Defence Policy and Planning Division.

Lionel Ponsard is deputy chief of the Academic Research Branch at the NATO Defense College in Rome.

Eric R. Terzuolo was NATO's Manfred Wörner Fellow for 2003-04 and is the author of the forthcoming NATO and Weapons of Mass Destruction (Routledge, 2006). A member of the US Foreign Service from 1982 to 2003, he holds a PhD from Stanford University and has taught international relations and European history in Italy, the Netherlands and the United States.

Peter van Ham is director of the Global Governance Programme at the Netherlands Institute of International Relations “Clingendael” in The Hague, and professor at the College of Europe in Bruges, Belgium.

David S. Yost is a professor at the Naval Postgraduate School in Monterey, California, currently seconded to the NATO Defense College in Rome as a senior research fellow.