 Many of the new Polish Silesians who resented the Germans for their invasion in 1939 and brutality in occupation now resented the newly formed Polish communist government for their population shifting and interference in agricultural and industrial affairs.The administrative division of Silesia within Poland has changed several times since 1945.Since 1999, it has been divided between Lubusz Voivodeship, Lower Silesian Voivodeship, Opole Voivodeship, and Silesian Voivodeship.