Promoted to major general in December 1943, and lieutenant general in May 1944, he held various commands before being appointed Commander of the 91st Infantry Division in April 1944. Falley was the first German general to fall in action during the Normandy landings. On D-Day, Falley was returning from Rennes, where a war game had been organised by the German High Command, to his Division headquarters, in Picauville. Falley was killed alongside a major and a corporal when their staff car was shot up by paratroopers of the U.S. 82nd Airborne Division, on the country road outside the rear wall of the German 91st Infantry Division's headquarters, Chateau de Bernaville, in Picauville, southwest of Sainte-Mère-Église, Normandy.
Scherzers, Veit (2007). Die Ritterkreuzträger 1939–1945 Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives [The Knight's Cross Bearers 1939–1945 The Holders of the Knight's Cross of the Iron Cross 1939 by Army, Air Force, Navy, Waffen-SS, Volkssturm and Allied Forces with Germany According to the Documents of the Federal Archives] (in German). Jena, Germany: Scherzers Militaer-Verlag. ISBN978-3-938845-17-2.
