Andrew Clapham is Professor of Public International Law at the Graduate Institute of International Studies, Geneva. Before he joined the Graduate Institute of International Studies Institute in 1997, he was the Representative of Amnesty International to the United Nations in New York. His current research relates to the role of non-state actors in international law and related questions in human rights and humanitarian law. Andrew Clapham is the Director of the Geneva Academy of International Humanitarian Law and Human Rights. His publications include Human Rights: A Very Short Introduction (2007), Human Rights Obligations of Non-State Actors (2006), and International Human Rights Lexicon (2005), with Susan Marks.

Paola Gaeta (PhD in Law, European University Institute, 1997) was Assistant Professor (1998), Associate Professor (2001) and then Tenured Professor (2001-2010) of Public International Law at the University of Florence. She is currently Tenured Professor of International Criminal Law at the Law Faculty of the University of Geneva and Adjunct Professor of International Criminal Law at the Graduate Institute for International and Development Studies. Since 2007, she is Director of the LL.M. Programme in International Humanitarian Law of the Geneva Academy of International Humanitarian Law and Human Rights and since 2011 Director of the Academy itself. She is a Member of the Editorial Board of the Journal of International Criminal Justice and of the Editorial Board of the European Journal of International Law. Her publications include The UN Genocide Convention: A Commentary (ed.), (2009).

G. Abi-Saab - The Graduate Institute, Geneva
A. Bianchi - The Graduate Institute, Geneva
E. Cannizzaro - University of Roma "La Sapienza"
The Late A. Cassese - University of Florence
V. Chetail - Research Director, Geneva Academy of International Humanitarian Law and Human Rights
C. Chinkin - London School of Economics and Political Science
A. Clapham - Director of the Geneva Academy of International Humanitarian Law and Human Rights
J. Cockayne - Centre on Global Counterterroism Cooperation, Washington DC
E. David - Université libre de Bruxelles
K. Del Mar - Lauterpacht Centre for International Law, University of Cambridge
G. Distefano - University of Neuchâtel
K. Dörmann - International Committee of the Red Cross
D. Fleck - Formerly Director, International Agreements and Policy, Federal Ministry of Defence, Bonn
P. Gaeta - Director of the LL.M. Programme in International Humanitarian Law of the Geneva Academy of International Humanitarian Law and Human Rights
P. Haggenmacher - The Graduate Institute, Geneva
S. Haines - Geneva Centre for Security Policy
J.M. Henckaerts - International Committee of the Red Cross
D. Jinks - The University of Texas at Austin
J. Kellenberger - International Committee of the Red Cross
R. Kolb - University of Geneva
N. Melzer - International Committee of the Red Cross
T. Meron - Judge, Appeals Chamber, International Criminal Tribunal for the former Yugoslavia
N. Michel - The Graduate Institute, Geneva
Y. Naqvi - International Criminal Tribunal for the former Yugoslavia
M. Nowak - University of Vienna
R. O'Keefe - Lauterpacht Centre for International Law, University of Cambridge
E. Riedel - The Graduate Institute, Geneva
P. Rowe - Lancaster University
Y. Sandoz - International Committee of the Red Cross
W. Schabas - Middlesex University
M. Schmitt - United States Naval War College
P. Seger - Federal Department for Foreign Affairs, Switzerland
P. Spoerri - International Committee of the Red Cross
C. Tomuschat - Humboldt University Berlin
W.H. Von Heinegg - European University, Frankfurt
D. Weissbrodt - University of Minnesota

"Clapham and Gaeta are to be congratulated for their Herculean efforts in assembling a book that fairly represents the vast disagreement and contestation that currently inhabits the legal regulation of warfare. The Handbook paints a complex picture of overlapping legal domains all pushing and competing to regulate military conduct. Whether or not this competitive process is coherent depends on which author in the Handbook is asked, a pluralism that accurately reflects the state of the field today." -AJIL, Jens David Ohlin, Cornell Law School