The Battle of Arras was fought on 9 May 1915 on the Western Front in France. The so-called Bayonne Legion (a French Foreign Legion infantry unit which consisted of ethnic Polish volunteers) clashed with troops of the Imperial German Army, defending the hill of Vimy, located 10 kilometers north of Arras, France. The Czechoslovak battalion Nazdar also took part in the engagement, the first battle of what would become the Czechoslovak Legion, and was nearly wiped out in the process.
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