Pacifist works, and literature espousing liberal, democratic values were targeted for destruction, as well as any writings supporting the Weimar Republic or those written by Jewish authors. During operation AB-Aktion, many university professors and members of the Polish intelligentsia were arrested, transported to concentration camps, or executed. The agreement lasted six months before Hitler seized the rest of Czech territory in March 1939. Of these, they killed an estimated.3 million, with.8 million of them being killed between June 1941 and January 1942. Many chose to stay in continental Europe. Genocide Studies and Prevention: An International Journal. Jewish businesses were denied access to markets, forbidden to advertise, and deprived of access to government contracts. The Canadian Foundation for Polish Studies of the Polish Institute of Arts Sciences Price-Patterson Ltd.