From the UNICEF announcement:
The Vietnam War ended in 1975. The USA withdrew their troops and North and South Vietnam were reunited. After 35 years, the world no longer pays attention to the drama. But for the Vietnamese people the legacy of American warfare continues. It was a cruel and brutal war that was also extremely damaging to the environment. US forces used the herbicide Agent Orange to destroy foliage that the North Vietnamese were using as cover. Agent Orange contains dioxins that are known to cause cancer and damage genes. The effects of the toxic substance can be seen among Vietnamese people to this day: cancer, immune disorders and severe deformities. According to official estimates, there are 1.2 million disabled children in Vietnam. In rural areas, the percentage of disabled children is significantly higher than in urban areas. The face of 9-year-old Nguyen Thi Ly is a sad example of this toxic legacy.