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Pushed by Austria on the small newborn states of the Balkans in order to revolt.
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A young nationalist Bosnian, Gavrilo Princip, kills Archduke Ferdinand of Habsburg, heir to the throne.
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Almost a month after the assassination of Francesco Ferdinando, Austria-Hungary sent a tough ultimatum to Serbia which was refused. Consequently, on July 28, 1914, Austria-Hungary declared war to Serbia resulting in the progressive mobilization of European powers for the system of alliances between the various states.
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It was stipulated by the representatives of the Triple Entente and the Italian foreign ministers Salandra and Sonnino, with whom Italy pledged to go to war against the Central Empires.
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Public propaganda to force the Italian parliament to vote on the war.
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The war spreads over the Middle East in the Suez Canal area
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Submarine bombing to boycott British transoceanic exchanges. An economic aid from the united states is needed.
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The intervention has two purposes: to stop the German submarine war and an interest in the victory of France and England
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The Bolsheviks overthrow the Russian Provisional Government and seize power with Vladimir Lenin as head of government.
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Russia withdraws from the conflict and as a consequence falls the Eastern front
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Italy achieves the decisive victory of Vittorio Veneto and so the Austro-Hungarian empire disintegrates.
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William the second abdicates and the Weimar republic is formed.
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The Russian, Austrian, German and Ottoman empires collapsed
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Peace conference organized by the countries that emerged victorious from the First World War, committed to outlining a new geopolitical situation in Europe and to drawing up peace treaties with the central powers that had emerged defeated by the war.
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Germany is humiliated, forced to surrender Alsace and Lorraine to France and pay a war indemnity of 132 billion gold marks
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Austria loses 7/8 of its territory and is divided into several states
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Bulgaria loses territories for the benefit of Greece, Romania, Yugoslavia and Macedonia.
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hungary loses 3/5 of the territory and forced to a repair of war and the armed forces
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Reduction of the Turkish territory and various territories become controlled by France and England.
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The borders of Turkey are defined