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Archduke Francis Ferdinand is assassinated
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Austria-Hungary declares war on Serbia
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Germany invades Luxembourg and Belgium. France invades Alsace. British forces arrive in France.
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Austria- Hungary invades Russia
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Allied forces halt German advance into France
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Germany begins naval blockade of Great Britain.
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Allied forces land on the Gallipoli Peninsula of the Ottoman Empire.
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German submarine sinks the passenger liner Lusitania during crossing from New York to Liverpool, England, killing 128 Americans.
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Italy declares war on Austria-Hungary.
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Germany begins the attack on Verdun
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Naval Battle of Jutland takes place between British and German fleets.
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Allied offensive begins the Battle of the Somme
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550, 000 French Casualtites
450,000 German Casualties -
German foreign secretary, Arthur Zimmermann proposed an alliance between Germany and Mexico against the United states. The note said Germany would help Mexico re-conquer lost territory belonging to America
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Germany returns to unrestricted submarine warfare halted after the sinking of the Lusitania.
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The United States declares war on Germany
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American Soldiers arrive in France
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Russia signs armistice with Germany
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Pesents Congress his outline of Fourteen Points required for peace.
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Russia signs the Treaty with Germany
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Begins its final offensive of the war
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Untied States forces win the Battle of Cantigny
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American forces stop German attempt to cross the Marne River at Chateau-Thierry.
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American First Army attacks St. Mihiel military holding
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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
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British and American forces enter Germany
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Allied and German representatives sign treaty of Versailles. The United States signs treaty of guaranty, pledging to defend France in case of an unprovoked attack by Germany.
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United States signs separate peace treaties with Germany, Austria, and Hungary.