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Archduke Franz Ferdinand assassinated in Sarajevo
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Period: to
TIME SPAN OF THE OUTBREAK
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Austria declared war on Serbia
Russia supported SerbiaFrance and Russia were allies, thus France stood by Russia -
Russia mobilised
When Russia mobilised it threatened Germany -
Germany declared war on Russia
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France mobilised in support of Russia
Germany’s military plans saw the best attack on France would be through Belgium -
Germany demanded access through Belgium to fight France
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Germany declared war on France and thus invaded Belgium
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Britain as ally to Belgium, declared war on Germany