The potential political geography of the Earth's future
Geography can have a lot to do with a country's destiny.
Look at the United States: we have seldom feared invasions by other countries, because we only share borders with two other countries, and they're friendly.
Geography, destiny, and politics are all examined together by Tim Marshall, who has long covered foreign affairs and war around the world. He tells a story in maps and words about situations that will potentially bring countries into conflict, in the book The Power of Geography: Ten Maps That Reveal the Future of Our World.
The author joins us for an overview of potential hot spots on the planet--and above it, in space.