Leo_Geyr_von_Schweppenburg--Walther_Model

Leo Dietrich Franz Reichsfreiherr Geyr von Schweppenburg (2 March 1886 – 27 January 1974) was a German general in the Wehrmacht during World War II, noted for his pioneering stance and expertise in the field of armoured warfare.
He commanded the 5th Panzer Army (formalised as Panzer Group West) during the Invasion of Normandy, and later served as Inspector General of Armoured Troops. After the war he was involved in the development of the newly built German Army (Bundeswehr).