The official term used by the Nazi authorities for these areas was the " incorporated Eastern territories " ( German : '' Eingegliederte Ostgebiete '' ) . They planned for a complete Germanization of the annexed territories , considering them part of their lebensraum . The local Jewish population was forced to live in ghettos , and was gradually deported to concentration and extermination camps , the most infamous of which , Auschwitz , was located in annexed East Upper Silesia . The local Polish population was to be gradually enslaved , exterminated and eventually replaced by German settlers . The Polish elite especially became subject to mass murder , and an estimated 780,000 Poles were subject to expulsion , either to the General Government or to the Altreich for forced labour . The remaining Polish population was strictly segregated from the German population and subject to a variety of repressive measures . These included forced labour and their exclusion from all political and many cultural aspects of society . At the same time , the local German minority was granted several privileges , and their number was steadily raised by the settlement of ethnic Germans , including those displaced by the Nazi-Soviet population transfers
Polish elite
Intelligenzaktion
Polish areas annexed by Nazi Germany