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Assassination of the Archduke Francis ferdinand of Austria
A group of serbia kill the archduke of Austria -
Austria ultimatum to Serbia
austria give to serbia a warning of war -
Austria declares war to serbia
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Russia mobilizes
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German ultimatum to Russia
Germany give a warning of war on Russia -
Germany declares war to Russia
the Germans troops declareas war on Russia -
Germany declares war on France
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german troops invade belgium
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Great Britains deaclares war on Germany
Britains declares war on German
