The mother of a family affected by Agent Orange collects rice for processing in the city of Dong Hoi. July 15, 2015.

A former Vietnamese army soldier proudly shows the medal awarded to him by the government in gratitude for his service during the war. July 31, 2015.

Mr. Lee, a former Vietnam War soldier, visits the grave of his 12 children who were exposed to Agent Orange. August 3, 2015.

Mr. Duc and his children, all exposed to Agent Orange during and after the Vietnam War, at their home in Dong Hoi. July 16, 2015.

Mrs. Duc cares for her two children, exposed to Agent Orange and suffering from spinal malformations. July 16, 2015.

Duong Thi An shows the various medicines her children must take daily to survive, some of which are already expired. July 28, 2015.

“It is a full-time job; 24 hours of the day are devoted to taking care of Lien — she constantly needs one of us to help her,” says Lien’s mother and primary caregiver, Phan Thi Do. August 2, 2015.

Lien suffers from cerebral palsy, causing her to grip her hand so tightly that her nails cut into her skin. August 2, 2015.

Mr. Toan, a former Vietnamese army soldier, smiles at his daughter, who suffers from Agent Orange–related symptoms including dwarfism and limited cognitive functions, in the city of Bo Trangh. August 10, 2015.

An Agent Orange survivor waits for his mother in his room in the city of Bo Trangh on August 18, 2015. He is usually left unclothed, as mental health issues associated with Agent Orange cause him to tear his clothes whenever he wears them.