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Nazi Germany invades Poland
Germany invading Poland is often used as the point that began WWII. -
Britain and France declare war on Germany
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Canada declares war on Germany
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The Soviet Union invades Poland from the east
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Poland surrenders to Germany
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The Soviet Union invades Finland
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The Soviet Union is expelled from the League of Nations
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British drop the first bombs on German soil
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Germany invades Denmark and Norway
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Italy enters the war
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Italy invades southern France
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France signs an armistice with Nazi Germany
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Germany invades the Soviet Union
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Germany attacks Moscow for the first time
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Pearl Harbor