Which battle did Friedrich Bertram Sixt von Armin participate in from July to November 1917?
Friedrich Sixt von Armin: Friedrich Bertram Sixt von Armin (27 November 1851 – 30 September 1936) was a German general who participated in the Franco-Prussian War and the First World War. Battle of Passchendaele: The Battle of Passchendaele (German: "Flandernschlacht" , French: "Deuxième Bataille des Flandres" ), also known as the Third Battle of Ypres, was a campaign of the First World War, fought by the Allies against the German Empire. Battle of Passchendaele:  The battle took place on the Western Front, from July to November 1917, for control of the ridges south and east of the Belgian city of Ypres in West Flanders, as part of a strategy decided by the Allies at conferences in November 1916 and May 1917.
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