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heir to the Austro-Hungarian throne, who was killed in Sarajevo along with
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Austria-Hungary seeks German support for a war against Serbia in case of Russian militarism. Germany gives assurances of support
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Austria-Hungary declares war on Serbia
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Germany sends Russia an ultimatum. and then Germany declares war on Russia
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Germany declares war on France.[14] Belgium denies permission for German forces to pass through to the French border
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Germany invades Belgium to outflank the French army. after Belgium said they cant pass
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The United Kingdom declares war on Germany.
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The United States declares neutrality.
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Austria-Hungary declares war on Russia
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Serbia declares war on Germany
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Montenegro declares war on Germany.
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The United Kingdom declares war on Austria-Hungary
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France declares war on Austria-Hungary.
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Japan declares war on Germany
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Japan declares war on Austria-Hungary.