After the wars or conflicts, landmines remain on the land and people ordinally citizens include many children step on them and get injured. This problem is called landmine issue.

As Landmines are simple structure, it is difficult to lose their explosive functions. Thus, the landmine issue cannot be solved by aging of landmines, we must find and remove landmines to secure their living.

In recent years, the number of people affected by the landmine issue has ranged between 6,000 and 8,000 per year. Most of the casualties are civilians, including many children.