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By early 1915, opposing armies on the Western Front (located in France) had dug miles of parallel trenches to protect themselves from enemy fire
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A German U-boat, or submarine, sank the Lusitania, a British Passenger Ship killed 120 American passangers
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Czar Nicholas II took person command of forces. He knew little of military manners and his leadership was described as weak, ineffective, and indecisive.
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The Battle of Somme was a battle fought by the armies of the British Empire and French Third Republican against the German Empire- July- November 1916.
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They knew it might pull the US into the was but thought it would result in the defeat of Britain before the US mobilized
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After the Germans returned to their Unrestriced submarine warfare, they also sent a secret message to Mexico telling Mexico Germany would help Mexico "reconquer" the land they lost to the US if Mexico attacked the US.
