Fleet Marine Force Reference Publication (FMFRP) 12-11, German Tactical Doctrine, is published to ensure the retention and dissemination of useful information which is not intended to become doctrine or to be published in Fleet Marine Force manuals. FMFRPs in the 12 Series are a special category, reprints of historical works which are not available elsewhere. This reference publication came about as the result of reports from American officers who attended the German General Staff School from 1935-1939. It describes the doctrinal similarities and differences which enabled the German Armies to achieve success in the early years of World War II, and gives the reader a view of German training and planning.