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Fascist Italy invades, conquers, and annexes Ethiopia.
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Japan invades China, initiating World War II in the Pacific.
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Fascist Italy invades and annexes Albania.
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The Soviet Union invades Poland from the east
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Germany invades Denmark and Norway. Denmark surrenders on the day of the attack; Norway holds out until June 9.
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Italy enters the war. Italy invades southern France on June 21
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Italy invades Greece from Albania
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The air war known as the Battle of Britain ends in defeat for Nazi Germany.
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Bulgaria joins the Axis
