Afghanistan is one of the countries most contaminated by mines and explosive remnants of war, the sad legacy of nearly four decades of armed conflict. The remote region of Badakhshan, in which FSD operates in the northeast of the country, represents 15% of the contaminated territory. Many accidents occur in this area, isolated from the rest of the country by a mountain range and where relief and international aid are challenging to access. Often involved: "butterfly" mines, those green plastic devices dropped by Soviet helicopters during clashes against the mujahedin in the 1980s. More than a million are believed to remain in the country.