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Battle of Tannenberg, (August 26–30, 1914), World War I battle fought at Tannenberg, East Prussia (now Stębark, Poland), that ended in a German victory over the Russians. The crushing defeat occurred barely a month into the conflict, but it became emblematic of the Russian Empire's experience in World War I. -
Battle of Verdun, (February 21–December 18, 1916), World War I engagement in which the French repulsed a major German offensive. It was one of the longest, bloodiest, and most-ferocious battles of the war; French casualties amounted to about 400,000, German ones to about 350,000. Some 300,000 were killed. -
The Battle of the Somme (1 July - 18 November 1916) was a joint operation between British and French forces intended to achieve a decisive victory over the Germans on the Western Front. For many in Britain, the resulting battle remains the most painful and infamous episode of the First World War. -
The Third Battle of Ypres, also known as the Battle of Passchendaele , was a campaign of the First World War fought by the Allies against the German Empire.