Geoffrey S. Corn is the George R. Killam, Jr. Chair of Criminal Law and Director of the Center for Military Law and Policy at Texas Tech University School of Law. He joined the Texas Tech faculty after a 17-year tenure as a Professor of Law at South Texas College of Law Houston. Prior to joining academia in 2005, Professor Corn served in the U.S. Army for 21 years as an officer, retiring in the rank of Lieutenant Colonel in 2004. His career culminated as the Special Assistant to the Judge Advocate General for Law of War Matters, the U.S. Army’s senior expert advisor on all issues related to the laws of war. His career also included service as tactical intelligence officer in Panama; supervisory defense counsel for the Western United States; Chief of International Law for US Army Europe; Professor of International and National Security Law at the US Army Judge Advocate General’s School; and Chief Prosecutor for the 101st Airborne Division. He has authored more than 60 scholarly articles and is co-author of The Law of Armed Conflict: An Operational Perspective; The Laws of War and the War on Terror; National Security Law and Policy: Principles and Policy; U.S. Military Operations: Law, Policy, and Practice; and National Security Law and the Constitution. Ken Watkin served for 33 years in the Canadian Forces, including four years as the Judge Advocate General. In 2002 he was appointed to the Order of Military Merit, in 2006 a Queen’s Counsel, and in 2010 he received the Canadian Bar Association President’s Award. Ken was responsible for providing operational law advice regarding Canada’s military operations post-9/11, and worked as government counsel for various inquiries arising from the 1994 Rwandan genocide. Since his retirement in 2010, he has served as a foreign observer to the Israeli Independent Commission investigating the 2010 Gaza blockade incident, and as the Charles H. Stockton Professor of International Law at the United States Naval War College (2011-12). Ken has also worked as a counterinsurgency/counterterrorism consultant for the United Nations and the Government of Canada. In addition to writing over 50 scholarly articles, commentaries and book reviews he is the author of Fighting at the Legal Boundaries: Controlling the Use of Force in Contemporary Conflict (Oxford University Press, 2016), which was awarded the 2017 Francis Lieber Prize by the American Society of International Law. Jamie Williamson is the Executive Director of the International Code of Conduct for Private Security Service Providers Association. He previously worked with the International Committee of the Red Cross (ICRC) advising and training State and non-State weapons bearers, and led the ICRC's legal dialogue in numerous contexts globally, including the U.S., Canada and Southern and Eastern African. Jamie Williamson also served from 1996–2005 with the UN ad hoc international criminal tribunals in Tanzania and the Netherlands, and the Special Court for Sierra Leone. He is on the faculty of American University's Program of Advanced Studies of the Academy on Human Rights and Humanitarian Law.