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June 28, 1914 assassination of Archduke Francesco Ferdinando and his wife Sophie in Sarajevo
Chain reactions: Austria declares to Serbia, Germany to Russia and then to France. Germany violates Belgian neutrality. Britain declares war on Germany. -
August 6, 1914 Germans occupy neutral Belgium to enter France. Battle of the Marne. The French push back the Germans.
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August 4 Britain declares war on Germany.
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June-September 1914. First phase of the war
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May 1915. German submarine sinks British passenger ship Lusitania. More than a thousand dead, including 128 Americans. US President Wilson sends diplomatic protests to Germany.
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May 24, 1915. Italy declares war on Austria
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Battle of Verdun between the French and the Germans. The longest and bloodiest battle of the 1st World War. It cost huge human losses on both sides
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1 July-18 November 1916. Battle of the Somme. The bloodiest of the First World War fought by the armies of the British Empire and the French Third Republic against the German Empire, with the aim of accelerating a victory for the Allies
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Verdun and Somme: the most enduring and bloody battles of the 1st World War
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April 6, 1917. USA goes to war on the side of Great Britain
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1917 The Bolsheviks take power in Russia
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24 October 1917. Clash between the Austro-Hungarian and Italian armies. Defeat of the Italian army in Caporetto
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USA at war
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Europe is about to be liberated by allied troops
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The American President Wilson proposes "Fourteen points" to elaborate the peace treaty and prevent future wars and a plan to create the League of Nations in order to resolve the international disputes to which the United States does not adhere.
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November 11, 1918, Germany signs the surrender. End of the 1st World War
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Allied troops in Europe, 14 Wilson points, German surrender and end of war
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