Why Did the Massive Maginot Line Fail to Stop Hitler?

After years of trench warfare in WWI, France built a line of massive underground bunkers and other defensive fortifications along hundreds of miles of its border. Learn how the Maginot Line worked -- and why it failed to stop the Nazi invasion -- in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/world-war-ii/maginot-line.htm

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