Germany's success in WWII was built upon its tank forces; however, many of its leading generals, with the notable exception of Heinz Guderian, are largely unknown. This biographical study of four German panzer army commanders serving on the Eastern Front is based upon their unpublished wartime letters to their wives. David Stahel offers a complete picture of the men conducting Hitler's war in the East, with an emphasis on the private fears and public pressures they operated under.