Baltic German history and presence in the Baltics came to an end in late 1939 , following the signing of the Molotov – Ribbentrop Pact and the subsequent Nazi – Soviet population transfers . Nazi Germany resettled almost all the Baltic Germans under the program into the newly formed of and Danzig-West Prussia ( on the territory of the occupied Second Polish Republic ) . In 1945 , most ethnic Germans were expelled from these lands by the Soviet army . Resettlement was planned for the territory remaining to Germany under terms of the border changes promulgated at the Potsdam Conference , i.e. west of the Oder – Neisse line , or elsewhere in the world
Potsdam Conference
Potsdam Conference
Baltic Germans