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Archduke Franz Ferdinand of Austria is assasinated and killed by a member of the Serbian Black Hand, a secretive military society. -
A month later after the assasination of the Archduke, Austria-Hungary announces that they have declared war on Serbia. -
The Battle of Tannenberg was a battle fought between Germany and Russia which lasted 4 days. The battle resulted in a German victory and casualties of Russians losing 30,000 of their soldiers and 92,000 taken prisoner, while Germany only lost 13,000 soldiers.
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This was the first battle of World War 1, it was fought in the Marne River Valley in Marne, France. It resulted in 227,000 Casualties, and was concluded by a victory from the Triple Entente against the Germans and lasted 7 days.
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This was another battle fought in World War 1 that lasted from Oct 19th, 1914 to Nov 30, 1914. It was fought on the Western Front in Ypres, West Flanders, Belgium. The casualties ranged from the French losing 50,000 men and the Belgians losing 20,000, Then the Germans lost more than 130,000 men. It accumulated in 200,000 casualties in total.
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February 18th, 1915, Germany begins their naval blockade against Great Britain. Utilizing Britain's own naval resources. Germany's attempt to stop the supply movement between the allied forces resulted in the sinking of neutral naval ships and civilian passenger ships. -
On May 7, 1915, The British passenger liner was torpedoed and sinked by a German submarine without warning nearby the south coast of Ireland, within minutes the Lusitania sank and resulted in casualties of 1,198 passengers drowned, including 128 Americans. -
On May 23, 1915, Italy declares war on Austria-Hungary right after resigning from the Triple Alliance. At the start of the war, Italy mobilized with 300,000 men but later sized to 5 million in 1918. -
The Battle of Verdun was a battle fought from February 21, to December 18, 1916, on the Western Front in Verdun, France. This battle was the longest battle of World War 1 and resulted in casualties of 337,231 soldiers and concluded with France being the victor.
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The United States announces that they have declared war on Germany on April 6, 1917, right after Germany tried to convince Mexico to join the war against the United States and for unrestricted submarines to enter the North Atlantic ocean. -
On March 3, 1918, Russia signs a treaty with the central powers, including Germany, Austria-Hungary, Ottoman Empire, and Bulgaria, in the city of Brest-Litovsk. This ended Russia's participation in World War 1. -
On July 15-17, 1918, Germany commences their final offensive of the war in Reims, France with 52 divisions. The allies had been waiting for this battle and were ready. The final German attack is failed miserably and crushed by the French.
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On January 18, 1919, the Paris peace conference begins and commences the set terms of peace after World War 1. -
The Treaty Of Versailles is signed on June 28, 1919. The treaty of Versailles was one of the most important peace treaties of World War 1. It ended the war between German and Allied powers -
On January 10, 1920, The Treaty of Versailles takes its effect after being signed. The treaty gave German territories to neighboring countries and placed others in supervision.