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  Germany invades Poland, marking the beginning of World War 2.
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  Britain and France declare war on Germany
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  Germany invades Denmark and Norway
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  Germany invades Belgium, the Netherlands, and France
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  The Battle of Britain begins
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  France surrenders to Germany
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  Germany invades the Soviet Union
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  Japan attacks Pearl Harbor, leading the United States to enter the war
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  The United States declares war on Japan
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  Germany and Italy declare war on the United States
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  The Battle of Midway, a significant naval battle in the Pacific Theater
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  The Battle of Stalingrad begins, one of the deadliest battles in history
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  The Battle of Stalingrad ends with a Soviet victory
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  The Allies invade Sicily
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  Italy surrenders to the Allies
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  D-Day, the Allied invasion of Normandy
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  Paris is liberated by the Allies
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  The Battle of the Bulge begins, the last major German offensive on the Western Front
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  Adolf Hitler commits suicide
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  V-E Day, Germany surrenders, marking the end of the war in Europe
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  The United States drop a atomic bomb on Hiroshima, Japan
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  The United States drops a atomic bomb on Nagasaki, Japan
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  V-J Day, Japan formally surrenders, marking the end of World War ll