 After being annexed by Nazi Germany, much of the region was redesignated as the "Reichsgau Sudetenland".After World War II, most of the previous population of the Sudetes was forcibly expelled on the basis of the Potsdam Agreement and the Beneš decrees, and the region was re-settled by new Polish and Czechoslovak citizens.A considerable proportion of the Czechoslovak populace thereafter strongly objected to the use of the term "Sudety".