Generplan Ost (Master Plan East) was the plan commissioned by Himmler which outlined the German plan for colonization of Eastern Europe. It included ethnic cleansing and was based upon the policy of Lebensraum.
Race and settlement office General plan east. Bender? https://translate.googleusercontent.com/translate_c?depth=2&hl=en&prev=search&rurl=translate.google.com&sl=de&u=https://de.wikipedia.org/wiki/Generalplan_Ost&usg=ALkJrhih0cUjAWBjMs3DOcyAf4iZc1IRYw
Zamość, Poland, In 1942, Zamość County, due to its fertile black soil, was chosen for further German colonization in the General Government as part of Generalplan Ost, with the planned name of Himmlerstadt, after Heinrich Himmler. Local people resisted the German occupiers with great determination; they escaped into forests, organised self-defence, helped people who were expelled, and bribed kidnapped children out of German hands (see Zamość Uprising).
TIL of the "Greater Germanic Reich" boundaries for a post Nazi Germany. Part of Hitler's long term plans for Europe was that shortly after winning the war he was going to establish the "Greater Germanic Reich" which encompassed much of Eastern Europe.