Russian invasion of East Prussia (1914)

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The Russian invasion of East Prussia occurred during World War I, lasting from August to September 1914. As well as being the natural course for the Russian Empire to take upon the declaration of war on the German Empire, it was also an attempt to focus the Imperial German Army on the Eastern Front, as opposed to the Western Front as part of the alliance and to force Germany to fight a two front war. Despite superiority over the Germans in numbers, the invading Imperial Russian Army spread its forces thin and was defeated in the battles of Tannenberg and the Masurian Lakes, resulting in a complete strategic collapse of the Russian plan of war. The Germans also seemed to have weak cooperation among the troops and disagreements in the generals. The victory in East Prussia inspired too much self-confidence, which led to defeats at Warsaw and Lodz. The shock of the invasion served to assist the German war effort. According to Alexander Watson "Outrage at the violation of national territory...

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