The doctor on a mission to build a healthier South Sudan | Yohanis Riek

Yohanis Riek went from herding cattle and fighting as a child soldier to becoming the first doctor in his community in South Sudan. He shares his journey to found a nonprofit bringing health care to remote communities — empowering locals to take charge of their own health, as the world's newest country finds its place in the world.

(Following the talk, Lily James Olds, director of the TED Fellows program, interviews Riek on the effect of USAID withdrawal in South Sudan and why he’s choosing to stay in his home country to better serve local populations.)