This is part one of the fifth volume in the comprehensive and authoritative series, Germany in the Second World War. It deals with developments in wartime administration, economy, and manpower resources in Germany and its occupied territories from 1939-1941. Series description This is the fifth in the magisterial ten-volume Germany and the Second World War. The six volumes so far published in German take the story to 1943, and have achieved international acclaim as a major contribution to historical study. Under the auspices of the Militärgeschichtliches Forschungsamt [Research Institute for Military History], a team of renowned historians has combined a full synthesis of existing material with the latest research to produce what will be the definitive history of the Second World War from the German point of view. The comprehensive analysis, based on detailed scholarly research, is underpinned by a full apparatus of maps, diagrams, and tables. Intensively researched and documented, Germany and the Second World War is an undertaking of unparalleled scope and authority. It will prove indispensable to all historians of the twentieth century.