During Prussian and German rule , Wałcz under the newly given name '' Deutsch Krone '' was part of the province of West Prussia created in 1773 . After the First World War it was one of the few towns of historical Greater Poland that were not included in the borders of Poland after regaining independence in 1918 . Deutsch Krone , having a predominantly German population , remained part of Weimar Germany and was part of the Grenzmark Posen – Westpreussen until 1938 and then was assigned to Pommern . The town was occupied by Red Army on 12 February 1945 . After the end of World War II , the town was put under Polish administration according to the Potsdam Conference and renamed to its historic name '' Wałcz '' . Its German inhabitants were expelled
Potsdam Conference
Potsdam Conference
Wałcz