 Between 1965 and 1971, the minefields were cleared because people were often harmed by them, even on the Austrian side of the border.This could well be taken as a sign of the Soviet Union leaning towards opening the borders to the West starting in the late 1970s.Despite Burgenland (especially the area around the Neusiedler See) always producing excellent wine, some vintners in Burgenland added illegal substances to their wine in the mid-1980s.