Some consider Guderian to be the founding father of blitzkrieg warfare & he certainly brought the whole concept to public attention & prominence chiefly through the publication of his book Achtung Panzer" in 1937. He commanded the XIX (Motorized) Army Corps in the 1939 Polish campaign & Panzergruppe Guderian during Operation Barbarossa. In March 1943 he became chief inspector of the Panzer forces but even the great tank commander could achieve little more than to delay the inevitable defeat of Germany."