Tim Marshall is a leading authority on foreign affairs with more than 30 years of reporting experience. A guest commentator on BBC and Sky News, he was the former diplomatic editor at Sky News, and before that, he worked for the BBC and LBC/IRN radio. He has reported from more than 40 countries and covered conflicts in Croatia, Macedonia, Kosovo, Afghanistan, Iraq, Lebanon, Syria, Libya as well as Bosnia and Herzegovina. He is the author of the Sunday Times bestsellers Prisoners of Geography: Ten Maps That Explain Everything About the World and Divided: Why We’re Living in an Age of Walls; as well as A Flag Worth Dying For: The Power and Politics of National Symbols; and Shadowplay: Behind the Lines and Under Fire.