The paper presents the changes in the political and administrative boundaries of the German state, which took place during the 20th century. The starting point is constituted by the political pattern having developed after the establishment of the German Empire in 1871, this pattern lasting until the World War I. Then, the territorial consequences are considered of the decisions, taken at the Versailles Peace Conference. After the presentation of the situation existing during the inter-war period, the political transformations are shown of the annexation politics of the Nazi Germany. The final part of the paper is devoted to the territorial effects that the Potsdam Treaty brought for the defeated Germany.
Piotr Eberhardt [firstname.lastname@example.org], Institute of Geography and Spatial Organization Polish Academy of Sciences, Twarda 51/55, 00‑818 Warszawa, Poland