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Germany, Austria and Italy form the Triple Alliance
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Troops of Russian Czar Nicholas II, attack people peacefully protesting in St Petersburg, killing hundreds on what becomes known as Bloody Sunday
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Serbia leads an attack on the Ottoman Empire and drives the Turks out of Europe
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Arch Duke Franz Ferdinand , heir to the Austrian throne and his wife are assassinated. The killer is believed to have ties to the Serbian Nationalist Movement
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Austria- Hungary with the support of Germany, issue and ultimatum to Serbia.. they agree but also begin to mobilize their army
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Austria- Hungary declares war on Serbia
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Austria attacks Belgrade, Serbian Capital city
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Germany declares war on Russia
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Germany declares war on Russia, then France and also invades Belgium . While ignoring request to withdraw from Belgium
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Britain now declares war on Germany, in return for their declaration on Russia, France and Belgium