Why does Cambodia have so many landmines?
The first landmines in Cambodia are said to have been laid in 1967, and over the roughly 30 years of civil war that followed, many different forces used landmines. In particular, under the "K5 Plan" from around 1985, huge numbers of mines were laid along the border with Thailand. According to Cambodian government reports, an estimated 4 million mines were laid. In addition, bombs dropped during the Vietnam War era that failed to explode (unexploded ordnance) also remained across the country.