Check out Gua Africa, a foundation started by rapper Emmanuel Jal, that works to provide education for children of war, including former child soldiers.
Especially noteworthy is the Emma Academy:
GUA Africa has been granted 15 acres of land in Leer, West Upper Nile, by the government of South Sudan. Our goal is to build a high quality education centre for the whole community, which will also serve as a safe haven for children whose lives have been shattered by years of war and poverty. It is to be called the Emma Academy, as a legacy to Emma McCune who lies in rest in Leer.
Many former child soldiers have not found their way back into education [emphasis added], and traditionally only 1 in 5 Sudanese girls are supported to finish High School. GUA Africa aims to start addressing these issues in a small way by working in partnership with other NGOs as well as the government’s recently formed education department.