Following World War II, a US Air Force base, radar station, and surveillance station were established there but when restrictions on German aviation were lifted in 1951, gliding soon returned to the Wasserkuppe where it has remained popular since. Beginning in the 1970s, the newer sport of hang gliding has also found a home there. Following the reunification of Germany and demise of the Soviet Union, the surveillance and radar installations were removed in the 1990s.