Battle Of Bolimow
The Battle of Bolimov was an inconclusive battle of World War I fought on January 31, 1915 between Germany and Russia and considered a preliminary to the Second Battle of the Masurian Lakes.
Anton Ludwig August von Mackensen (6 December 1849 – 8 November 1945), born August Mackensen, was a German soldier and field marshal. He commanded with success during the First World War and became one of the German Empire's most prominent military leaders.
Wikipedia: World War I
Wikipedia: Battle Of Bolimow