These were worked out by the RSHA department of the SS in Generalplan Ost (GPO, "[the] General Plan for the East"), which foresaw the deportation of 45 million "non-Germanizable" people from Central & Eastern Europe to West Siberia; of whom 31 million were "racially undesirable": including 100% of Jews, Poles (85%), Belarusians (75%) and Ukrainians (65%). Poland itself would have been cleared of all Polish people eventually, as 20 million or so were going to be expelled further east. The remaining 3 to 4 million Polish peasants believed to be the Polonized "descendants" of German colonists and migrants (Walddeutsche, Prussian settlers, etc.) – and therefore considered "racially valuable" – would be Germanized and dispersed among the ethnic German population living on formerly Polish soil.[1] The Nazi leadership hoped that through expulsions to Siberia, famine, mass executions and slave labour, the Polish nation would eventually be completely destroyed.[2] Experiments in mass sterilization in concentration camps may also have been intended for use on the populations.[3]