Prisoners of Geography: Ten Maps That Tell You Everything You Need to Know About Global Politics

by Tim Marshall

From a Russian perspective this is a double-edged sword. Poland represents a relatively narrow corridor into which Russia could drive its armed forces if necessary and thus prevent an enemy from advancing towards Moscow. But from this point the wedge begins to broaden; by the time you get to Russia’s borders it is over 2,000 miles wide, and is flat all the way to Moscow and beyond. Even with a large army you would be hard-pressed to defend in strength along this line. However, Russia has never been conquered from this direction, partially due to its strategic depth. By the time an army approaches Moscow it already has unsustainably long supply lines, a mistake that Napoleon made in 1812, and that Hitler repeated in 1941.