Tim Marshall is a leading authority on foreign affairs with more than thirty years of reporting experience. He was diplomatic editor at Sky News and before that worked for the BBC and LBC/IRN radio. He has reported from forty countries and covered conflicts in Croatia, Bosnia, Macedonia, Kosovo, Afghanistan, Iraq, Lebanon, Syria, and Israel. He is the author of Prisoners of Geography: Ten Maps That Explain Everything About the World; The Age of Walls: How Barriers Between Nations Are Changing Our World; and A Flag Worth Dying For: The Power and Politics of National Symbols. He is founder and editor of the current affairs site TheWhatandtheWhy.com.
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The globe has always been a world of walls, from the Great Wall of China to Hadrian's Wall to the Berlin Wall. But a new age of isolationism and economic nationalism is upon us, visible not just in Trump's obsession with building a wall on the Mexico bord... SEE MORE