Sections of northern and western Bohemia and northern Moravia around the Sudeten mountain ranges.
Formerly part of Austria, the predominantly German-speaking area was incorporated into Czechoslovakia after World War I. Discontent among the Sudeten Germans was exploited in the mid-1930s by the Nazi Party and its local leader Adolf Hitler 's demand that the region be ceded to Germany was initially rejected, but the cession was later accomplished by the {{link=Munich agreement">Munich agreement . After World War II the region was restored to Czechoslovakia, which expelled its German inhabitants and repopulated the area with Czechs.