Polish areas annexed by Nazi Germany
After long discussion, Germany decided to re-annex not only all the German lands it was forced to surrender to Poland in 1919–1922 under the Treaty of Versailles, including the "Polish Corridor", West Prussia, Province of Posen and Upper Silesia, but also other territories. The council of Free City of Danzig voted "democratically" to become a part of Germany again (though Poles and Jews had no rights to vote and all non-Nazi political parties were banned).Two decrees by Adolf Hitler (Oct. 8 and 12, 1939) provided for the division of the annexed areas of Poland into the following administrative units:
- Reichsgau Wartheland (initially Reichsgau Posen), which included the entire Poznan Voivodship, most of the Lodz Voivodship, five counties of the Pomeranian Voivodship, and one county of the Warszawa Voivodship;
- the remaining area of Pomeranian voivodship, which was incorporated into the Reichsgau Danzig-Westpreussen (initially Reichgau Westpreussen);
- Ciechanow District (Regierungsbezirk Zichenau) consisting of the five northern counties of Warszawa Voivodship (Plock, Plonsk, Sterpe, Ciechanow, Mlawa), which became a part of East Prussia;
- Katowice District (Regierungsbezirk Kattowitz) or unofficially Ost-Oberschlesien (East Upper Silesia); which included Sosnowiec, Będzin, Chryzanow, and Zawiercie counties and parts of Olkusz and Zywiec counties: The area was 94 000 km2 populated by 10 000 000 people.
For the policies applied on the annexed areas:
About 860,000 Poles were immediately deported from the annexed territories to the German-controlled remnant of Poland (General Government), while at the same time the Soviet Union began to expel Germans from the Baltic countries. 360,000 Baltic Germans settled down in the re-annexed lands. Poles living on the German re-annexed territories were deprived of their human rights, and faced serious persecutions. By contrast, after World War II Germans living east of the Oder-Neisse Line were transferred to Germany, but those who were former Polish citizens faced trials (see Pursuit of Nazi collaborators).