Tim Marshallis a leading authority on foreign affairs with more than 30 years of reporting experience. He was diplomatic editor at Sky News, and before that was working for the BBC and LBC/IRN radio. He has reported from 40 countries and covered conflicts in Croatia, Bosnia, Macedonia, Kosovo, Afghanistan, Iraq, Lebanon, Syria and Israel. He is the author of theSunday TimesbestsellersPrisoners of Geography: Ten Maps that Tell You Everything You Need to Know About Global PoliticsandDivided: Why We're Living in an Age of Walls; Worth Dying For: The Power and Politics of Flags;andShadowplay: Behind the Lines and Under Fire. He is founder and editor of the current affairs site TheWhatandtheWhy.com.