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Two years earlier Kaiser Wilhelm II had become ruler of Germany. He was a stubborn man that did not share power at all with anyone. He showed the world how mighty Germany had become. The impulsive Kaiser, envious of Britain's large empire and mighty navy, decided to challenge Britain.

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Germany quickly put its military plan into effect. Said it was for attacking France and then Russia. This brought Great Britain into the conflict.

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The First Battle of the Marne was the most important event of the war. It was the only major clash on the Western Front, while the defeat of the Germans left the Schlieffen Plan in ruins. This settled into a stalemate.

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The British army tried to relieve the pressure on the French. British forces attacked the Germans and in the first day more than 20,000 British soldiers were killed. Each side had suffered over half a million casualties.

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Germans crushed the invading Russian army and drove into full retreat. Germany regained East Prussia and seized numerous guns and horses from the enemy. More than 30,000 Russian soldiers were killed. Russia defeated Austria and the Austria defeated Russia.

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The effort to take the Dardanelles strait began on February 1915 know as the Gallipoli Campaign. British, Australian, New Zealand, and French troops made repeated assaults on the Gallipoli Peninsula on the western side of the strait. The Allies had a failure at the Gallipoli and they remained determined to topple the Ottoman Empire.

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Germans pushed another action for the United States to get closer to war. It was made for the Germans to help Mexico reconquer the part the United States had taken away. When the Zimmerman Note was out the United States called out for war with the Germans.

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Germany and Russia signed the Treaty of Brest-Litovsk, which ended the war between them. This treaty was extremely hard on Russia. It required the Russian government to surrender lands to Germany that now include Finland, Poland, Ukraine, Estonia, Latvia, and Lithuania. Even though the treaty became invalid after the war, these nations still gained their independence.

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The Allies and Germans clashed the at the Second Battle of the Marne. In the Allied attacked were some 350 tanks that rumbled slowly forward, smashing through the German lines and 2 million more American troops arrived. This made the Allied forces to advance steadily toward Germany.

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They signed an agreement for war to stop and on November 11, World War I came to an end. Now there was peace but left many feeling bitter and betrayed.