Alfred von Schlieffen was instrumental in devising the plan that was used after which event?
Alfred von Schlieffen:  His name lived on in the 1905–06 'Schlieffen Plan', then "Aufmarsch I", a deployment plan and operational guide for a decisive initial offensive operation/campaign in a one-front war against the French Third Republic. Schlieffen Plan: The Schlieffen Plan (German: "Schlieffen-Plan" , ] ) was the name given after World War I to the thinking behind the German invasion of France and Belgium on 4 August 1914.
World War I