Keiichiro Okimoto is Legal Officer in the Office of the Legal Counsel, Office of Legal Affairs, United Nations. He was previously a delegate and legal adviser to the Delegations of the International Committee of the Red Cross (ICRC) in Iraq, Israel and the Occupied Territories, the Philippines, and Rwanda. His publications include: The Distinction and Relationship between Jus ad Bellum and Jus in Bello (Hart, 2011)