The official term used by the Nazi authorities for these areas was the "incorporated Eastern territories" (German: Eingegliederte Ostgebiete).[4] They planned for a complete Germanization of the annexed territories, considering them part of their lebensraum.[5] 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,[3] and an estimated 780,000 Poles were subject to expulsion, either to the General Government or to the Altreich for forced labour.