Nyot Keomanee (66) remembers the Vietnam war years with clarity. "We used to hide in caves for much of the time. Sometimes the planes would come as low as the bamboo - then boom - they would drop their bombs. Other times they would be high up and drop lots and lots of bombs. It was very terrible and many of us died." Decades on, Laos is still living with the effects of the Vietnam war. Millions of bombs were dropped by US aircraft in Laos in an attempt to destroy the supply lines of North Vietnamese forces. Here in Bourlapha district, there were over 36,000 bombing missions. Many of the bombs remain deadly, with frequent accidents involving unexploded ordnance (UXO).