General Sir Rupert Smith served in the British Army in East and South Africa, Arabia, the Caribbean, Europe and Malaysia before commanding, as a major-general, the British 1st Armoured Division during the Gulf War. As the first Assistant Chief of Defence Operations and Security at the United Kingdom Ministry of Defence in 1992, he was intimately involved in the United Kingdom's development of the strategy in Bosnia-Herzegovina. In 1995 he was Commander UNPROFOR in Sarajevo and in 1996–8 was the Officer Commanding in Northern Ireland. His final assignment was as Deputy Supreme Commander Allied Powers Europe in 1998–2001, covering the NATO operation “Allied Force” during the Kosovo conflict and the development of the European Security and Defence Identity. He retired from the army in 2002. Since 2006 he has been international advisor to the ICRC. His experience is shared to some extent through the words of his treatise on modern warfare, The Utility of Force: The Art of War in the Modern World (Penguin, London, 2005).