Zahl der bis 1989 an der innerdeutschen Grenze verlegten und seither beseitigten Minen

This question asks for the number of landmines laid along the inner-German border before 1989 and subsequently removed. It seeks to understand the extent of the landmine problem and the progress made in clearing these dangerous remnants of the Cold War. The information requested is relevant to public safety and environmental remediation efforts. It affects former border regions and potentially those involved in demining operations.