In June 1940, with the conquest of France, Nazi Germany and Italy had conquered almost all of Western Europe. The map of Europe was one solid color reflecting the domination of the Axis Powers. Except for one small hole in the donut: Switzerland. Switzerland’s neutrality didn’t guarantee anything. In fact, the Nazis desperately wanted to invade Switzerland. Learn more about Operation Tannenbaum, the planned German invasion of Switzerland, on this episode of Everything Everywhere Daily.

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