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Hitler had been expanding into the Sudetenland and other areas of Europe, Britain had told Hitler that a line would be drawn in Poland. Any attempt to invade Poland by Germany would result in war. On September 1st Hitler did just that and consequently war broke out.

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13y ago

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Their invasion of Poland on 1st September 1939

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13y ago
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The action which was caused by germany which led to to the start of World War 2 in the European theatre was the Invasion of poland in september 1939

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13y ago
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Germany's bliizkrieg against Poland.

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10y ago
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The German invasion of Poland.

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11y ago
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Q: What German action on September 11939 caused Britain and France to declare war on Germany?
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