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Archduke Franz Ferdinand Assassinated
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Austria-Hungary Declares war on Serbia and World War One begins
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Germany invades Luxembourg and Belgium
British forces arrive in France. Nations allied against Germany were eventually to include Great Britain, Russia, Italy, Australia, New Zealand, South Africa, Rhodesia, Romania, Greece, France, Belgium, United States, Canada, Serbia, India, Portugal, Montenegro, and Poland. -
Allied forces halt German advance into France during First Battle of the Marne.
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Germany begins naval blockade of Great Britain.
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The Germans sink the Lusitania
German submarine sinks the passenger liner Lusitania during a crossing from New York to Liverpool, England, killing 128 Americans. -
Germany begins the attack on Verdun.
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Allied offensive begins the Battle of the Somme.
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December 18, 1916 Battle of Verdun ends
There were 550,000 French casualties and 450,000 German casualties. -
The Zimmerman Telegram
A telegram from Germany aimed to go to the German Embassy in Mexico explaining that if Mexico invaded the US that Germany would help -
The United States Declares war on Germany
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American combat forces arrive in France.
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President Woodrow Wilson presents to Congress his outline of Fourteen Points required for peace.
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Germany begins its final offensive of the war.
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Allied forces begin the attack at Meusse-Argonne, the final offensive of the war.
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Germany signs the Armistice at Compiègne, ending World War I.
