Denmark–Germany border

military conflict 1848–1851

strait between Germany & Denmark

firth on the Danish-German border

thumb | right | alt=The Vidå River seen from Højer Old Lock in the direction of the new one | The Vidå River seen from Højer Old Lock in the direction of the new one The Vidå or, with the definite article, Vidåen (, North Frisian Widuu) is a creek in the Jutland region of Denmark. The creek starts east of Tønder and flows around sixty-nine kilometres to the west, ending in the North Sea near Højer. In places the Vidå marks the border between Denmark and Germany (through the Rudbøl Sø).

disconnects the territories of Germany and Denmark

Disputes in 1969 on natural resources