Interesting Concepts. Marshall presents an interesting case of geopolitics from a geographical perspective, and while quite a bit of it makes perfect sense, there are also times where he presents an idea as perfectly obvious… when it actually isn’t/ wasn’t. For example, he claims that once America gained access to the Pacific Ocean in the 19th century via the Oregon Territory, it was destined to become a great world power simply because it had direct access to both of the world’s great oceans. If it was so perfectly obvious, why did it take another century or so – for this barely century old nation at the time – to achieve such supremacy? But the cases Marshall does make, he makes many interesting points on that even I had never considered, and I consider myself a fairly learned and analytical person. He also does so with great humor, which makes what could have been a much drier, more academic treatise into a much more enjoyable read. So read this thing. It has some good ideas and you’ll be entertained. Just don’t believe every word it says, and keep a critical eye on all things at all times. Recommended.