In this photo taken Friday, May 26, 2017, mother Nyayan Koang, who is unable to stand up due to polio, gazes at her son James, a former child soldier walking with a crutch, left, minutes after they were reunited and she saw him for the first time in 3 years, at a protection of civilians site in Bentiu, South Sudan. James, one of an estimated 18,000 children fighting in South Sudan according to the United Nations, was left for dead on a battlefield while back home his mother mourned him and held a funeral without a body, having no idea that he was still alive. (AP Photo/Sam Mednick)