Posen-West Prussia
Following World War I, most of the Prussian provinces of Posen and West Prussia became part of the Second Polish Republic. The remainders of these provinces formed the province of Posen-West Prussia, combining small German-settled regions all along the new German-Polish border ( meaning "border march"). In 1938, this province was dissolved and partitioned between Pomerania, Brandenburg and Silesia. The Pomeranian share was extended by the districts of Neustettin and Dramburg, formerly administered by Regierungsbezirk Köslin. The formerly Branderburgian districts of Arnswalde and Friedeberg were also incorporated into the Posen-West Prussia government region.