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Battle of the Atlantic
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Germany and the Soviet Union (USSR) sign the Nazi-Soviet Pact
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Germany attacks Poland
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Great Britain and France declare war on Germany
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USSR attacks Poland from the east. Poland soon falls and is divided between the Germans and Russians
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Winter War between USSR and Finland. War ends when Finland cedes border lands to the USSR
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Slovakia, Hungary, Romania join the Axis Powers
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Germany invades and captures Denmark and Norway
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Germany attacks Western Europe. Luxembourg, Netherlands, Belgium, and Northern France falls
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Italy joins the war and, on June 27, invades Southern France
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USSR gains control over the Baltic States (Estonia, Latvia, Lithuania)
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Battle of Britain
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Italy invades British controlled Egypt
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Germany, Italy, and Japan sign the Tripartite Pact
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Italy invades Greece
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German Afrika Korps are sent to North Africa to reinforce the Italians
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Bulgaria joins the Axis Powers
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Germany joined by Axis allies and Finland attack USSR
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The Japanese launch a surprise attack on the U.S. naval base in Pearl Harbor, Hawaii
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The United States declares war on Japan. Germany and Italy soon declare war on the United States
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The Japanese gain control over the Philippines, French Indochina, and Singapore
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The Bataan Death March begins as the imperial Japanese Army forces Filipino and American prisoners of war to march 60 tortured-filled miles
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The Battle of Coral Sea
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The Battle of Midway
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1st Battle of El Alamein
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The Battle of Guadalcanal
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Battle of Stalingrad
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2nd Battle of El Alamein
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Italy surrenders unconditionally
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Operation Overlord, D-Day
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Paris is liberated
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Battle of the Bulge
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Yalta Conference
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Battle of Iwo Jima
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Battle of Okinawa
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FDR dies, Harry Truman becomes president
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Mussolini is executed
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Hitler commits suicide
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V-E Day
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Potsdam Conference
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U.S. drops an atomic bomb on Hiroshima
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U.S drops an atomic bomb on Nagasaki
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V-J Day