During the Cold War , Reece 's statement that " The citizens of Danzig are German as they always had been " caused a reply from Jędrzej Giertych , a leading Polish emigrant in London and writer , publicist , and publisher of National Democratic background . Danzig was separated from Germany and had been established as the Free City of Danzig in accordance with the Treaty of Versailles following World War I . It was annexed by Nazi Germany in 1939 and subsequently grouped with Poland in the Potsdam Agreement
Potsdam Agreement
Potsdam Conference
B. Carroll Reece