Question: Alfred von Schlieffen was instrumental in devising the plan that was used after which event?
Sentence (from "Alfred von Schlieffen"): Alfred Graf von Schlieffen, mostly called Count Schlieffen (] ; 28 February 1833 – 4 January 1913) was a German field marshal and strategist who served as Chief of the Imperial German General Staff from 1891 to 1906.
Relevant evidence: No