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Adolf Hitler becomes the Chancellor of Germany. His Nazi party takes over and he becomes dictator.
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Nazi Germany and Facist Italy join forces and sign the Rome-Berlin Axis Treaty.
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Germany invades Poland, beginning World War II.
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Germany takes control of Denmark and Germany.
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Italy joins the war, siding with Germany.
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Japan joins Germany and Italy in a pact to become the Axis Alliance.
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Japan attacks the United States naval base on Pearl Harbor.
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A day after the bombing on Pearl Harbor, the United States joins the Allied Powers to combat Germany, Italy, Japan, and the Axis Powers.