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Prisoners of Geography by Tim Marshall is about how geography shapes the development and politics of nations. Marshall’s aim is to help readers gain a deeper understanding of global politics and conflicts by detailing their geographical underpinnings.

Published in 2015, Prisoners of Geography is one of several geography books Marshall has written for general audiences. In addition to writing about geography, Marshall is a journalist with over 20 years of experience covering wars and...

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Prisoners of Geography Summary Geographic Features Determine a State’s Development and Internal Politics

Marshall argues that much like the starting hand in a card game, the geography of a region determines how its politics and economics develop. If it’s dealt a naturally winning hand, filled with natural resources and defensible natural boundaries, it’s likely that it will develop into a stable, successful state. On the other hand, if a nation’s hand includes poor quality land, warring populations, and poorly drawn borders, it’s likely to experience difficulty and internal conflict.

(Shortform note: Not only does geography shape the politics of entire nations, but it also influences the political leanings of individuals within those nations. Research has shown that individual political identity is shaped by the beliefs of others in your region. Individuals tend to align with the dominant political group in the region they live in, regardless of how closely their beliefs actually mirror that group’s ideology. According to these findings, your political party may have more to do with where you live than what you believe.)

In this section, we’ll consider the factors that shape a nation’s internal politics....

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Prisoners of Geography Summary Geography Dictates How Nations Interact

Marshall asserts that in addition to determining a nation’s development and internal politics, geography shapes how nations interact with one another. Based on its geography, a nation may focus on securing energy resources, securing trade routes, or taking action to secure itself in anticipation of future conflicts.

(Shortform note: The idea that geography shapes relations between nations, also known as geopolitics, has a complicated history. Originally arising in the 1800s, geopolitics was a guiding philosophy for imperial powers. Historians note that geopolitics became an unpopular framework due to the fact that it was associated with Nazi strategy. However, since the 1970s, geopolitical thinking has experienced a resurgence, though in updated forms that are less imperialist.)

Nations Compete Over Energy and Other Resources

On the international level, nations compete for access to geographic resources, most often fossil fuel deposits. Nations that lack the resources to power themselves domestically tend to go beyond their borders to secure energy, whether via conquest or trade.

(Shortform note:...

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Shortform Exercise: What’s Your Region’s Geography?

Marshall argues that a region’s geography shapes both its economy and politics. Learn to analyze the effects of geography on the place you live.


Consider the major geographic features of the region you live in. For example, your region might be flat or mountainous; it could be infertile desert, or it could be well-irrigated farmland. Whatever your region’s geography is, briefly describe it below.

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