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German forces bombard Poland to try to regain lost land and rule it.
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France and Great Britain declare war on Germany.
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From April 9 to June 9, Germany invades and takes over Denmark and Norway.
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Germany takes over the Netherlands, Belgium, and northern France.
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Winston Churchill becomes leader of the British government.
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Italy enters the war.
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Germany laucnhes and air attack on Britain, which lasts until late October. These attacks are called the Battle of Britain.
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Germany, Italy, and japansigh the Tripartite Pact, creating the Axis Alliance.
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Germany and the Axis Powers attack Russia with over four million troops.
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Japan attacks the U.S. Navy in Pearl Harbor in Hawaii, and the next day the U.S. joins World War 2, on the Allies side.
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The U.S. Navy defeats Japan in the Battle of Miday.
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The Allies invadeand take the island of Sicily.
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Italy surrenders to the Allies, however Germany helps Mussolini to escape and set up a government in Northern Italy.
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D-day and the Normandy invasion. Allied forces invade France and push back the Germans.
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Paris is liberated from German control.
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The Germans launch a large attack in the Battle of the Bulge. They lose to the Allies sealing the fate of the German army.
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US Marines invade the island of Iwo Jima. After a fierce battle they capture the island.
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The US Third Army under General Patton crosses the Rhine River.
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US President Franklin Roosevelt dies. He is succeeded by President Harry Truman.
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Adolf Hitler commits suicide as he knows Germany has lost the war.
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Germany surrenders to the Allies.
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The United States drops the Atomic Bomb on Hiroshima, Japan. The city is devastated.
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Another atomic bomb is dropped on Nagasaki, Japan.
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Japan surrenders to US General Douglass MacArthur and the Allies.