Western and northern parts of Poland were incorporated into the Third Reich. Central and southern parts of the country formed the so-called General Government, governed by Hans Frank.
- The decree of 8 October 1939 annexed north-eastern Poland into the German Reich.
- The decree of 12 October 1939 created the General-Government with Governor-General Hans Frank, consisting on the districts of: Kraków, Radom, Lublin and Warsaw and later on, from mid-1941, also Galicia.
Eastern parts of the country since 1939 in the possession of the USSR, in June 1941 were incorporated in the administrative system of the German occupied General Government.