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triple alliance
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triple entente
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Franz Ferdinand Assassinated
Franz Ferdinand got Assassinated -
July crisis
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Austria-Hungary declares war on Serbia
Austria-Hungary declares war on Serbia -
Germany declares war on Russia
Germany declares war on Russia -
Germany declares war on France and invades Belgium
Germany declares war on France and invades Belgium -
Britain declares war on Germany
Britain declares war on Germany -
Austria-Hungary declares war on Russia
Austria-Hungary declares war on Russia -
trench warfare start on western front
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the somme start
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the somme end