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battle of tannenberg
German forces aimed to counter the Russian invasion of East Prussia during the early stages of WWI. Russia's plans suffered from poor coordination and outdated communications. Decisive German victory.Halted Russian advances into Germany, leading to heavy Russian losses and a blow to Russian morale. -
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First Battle of the Marne
Part of Germany's Schlieffen Plan, aimed at quickly defeating France by advancing through Belgium and into northern France. Allied victory (France and Britain). Forced the Germans to retreat and marked the end of mobile warfare, beginning the era of trench warfare. -
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Battle of Gallipoli
Allies aimed to seize the Dardanelles and secure a route to Russia. Ottoman victory. Heavy Allied losses and failure to knock the Ottomans out of the war. -
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Battle of Jutland
The largest naval battle of the war ended in no clear victor, but Britain retained control of the North Sea, maintaining its naval blockade of Germany.
Casualties: British: 6,000 killed; German: 2,500 killed. -
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Battle of the Somme
The Allies launched a major offensive to relieve pressure on France, suffering massive casualties while gaining little ground. This battle demonstrated the horrors of trench warfare.
Casualties: Allied: 145,000 killed; German: 160,000 killed, 200,000 wounded. -
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Brusilov Offensive
Russia launched a successful offensive against Austria-Hungary, inflicting heavy losses and gaining ground, though it did little to alter the overall course of the war.
Casualties: Russian: 200,000 killed; Austro-Hungarian: 100,000 killed, 450,000 prisoners. -
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battle of the Somme
The Allies launched a major offensive to relieve pressure on France, suffering massive casualties while gaining little ground. This battle demonstrated the horrors of trench warfare.
Casualties: Allied: 145,000 killed; German: 160,000 killed, 200,000 wounded.