At least 26 million cluster bombs were dropped on Cambodia by the United States during the Vietnam War in the 1960s and 70s.
And decades after the bombs stopped falling, millions of undetonated bombs lying in fields across the country continue to maim thousands of people who are unfortunate enough to step on them.
However, the Cambodian government has yet to agree to a global treaty on cluster munitions, which came into force on Monday.
The convention mandates signatory countries to find and clear their land of all the bomblets.
Al Jazeera Stephanie Scawen reports from the Cambodian capital Phnom Penh, on why the government has not signed the treaty to clear their land of the mines.