The German campaigns in Poland and France in 1939 and 1940 ushered in a new era in warfare. The theory of blitzkrieg, lightning war, developed by Guderian and other German generals was put into devastating practice. Blitzkrieg is an oral history of those successful early Wehrmacht campaigns. The accounts of these soldiers give a unique, inside look at the workings of the Nazi war machine at the height of its success. The original book Panzers in Action was published in Germany during the war and has never before been translated into English. Until now.