<P> Fiscal policy was also directed towards exploitation of conquered countries, from which capital was to be gathered for German investments . Banks, such as Bank Emisyjny w Polsce, were created to manage local economies . </P> <P> Even before the war, Nazi Germany maintained a supply of slave labour . "Undesirables" (German: unzuverlässige Elemente), such as the homeless, homosexuals, and alleged criminals as well as political dissidents, communists, Jews, and anyone else that the regime wanted out of the way were imprisoned in labour camps . Prisoners of war and civilians were brought into Germany from occupied territories after the German invasion of Poland . The necessary labour for the German war economy was provided by the new camp system, serving as one of the key instruments of terror . Historians estimate that some 5 million Polish citizens (including Polish Jews) went through them . </P> <P> In German - occupied Poland, the network of slave labor camps contained 457 complexes with dozens of subsidiary camps scattered over a broad area . At the Gross - Rosen concentration camp (to which Polish nationals were brought in from the annexed part of Poland) the number of subcamps was ninety seven (97). Under Auschwitz, Birkenau, and Auschwitz III (Monowitz) with thousands of prisoners each, the number of satellite camps was forty - eight (48). Stutthof concentration camp had forty (40) subcamps officially and as many as 105 subcamps in operation, some as far as Elbląg, Bydgoszcz and Toruń, 200 kilometres (120 mi) from the main camp . The Deutsche Reichsbahn acquired new infrastructure in Poland worth in excess of 8,278,600,000 złoty, including some of the largest locomotive factories in Europe, the H. Cegielski--Poznań renamed DWM, and Fablok in Chrzanów renamed Oberschlesische Lokomotivwerke Krenau as well as the locomotive parts factory Babcock - Zieleniewski in Sosnowiec renamed Ferrum AG later tasked with making parts to V - 1 i V - 2 rockets also . Under the new management, formerly Polish companies began producing German engines BR44, BR50 and BR86 as early as 1940 with the use of slave labor . </P> <P> Hundreds of thousands of people in occupied territories were used as slave labour by leading German corporations including Thyssen, Krupp, IG Farben, Bosch, Blaupunkt, Daimler - Benz, Demag, Henschel, Junkers, Messerschmitt, Philips, Siemens, and Volkswagen, on top of Nazi German startups which ballooned during this period, and all German subsidiaries of foreign firms including Fordwerke (Ford Motor Company) and Adam Opel AG (a subsidiary of General Motors). By 1944, slave labour made up one quarter of Germany's entire work force, and the majority of German factories had a contingent of prisoners . In rural areas the shortage of agricultural labour was filled by forced laborers from the occupied territories of Poland and the Soviet Union . The children of these workers were unwanted in Germany, and usually murdered inside special centres known as Ausländerkinder - Pflegestätte . </P>

Who introduced the economic plan of food production and full employment