Suzanne Kourma has lived through multiple coups, brutal dictatorships and human rights atrocities in her 80 years in the Central African Republic. None of them were as bad as the violence she’s witnessed over the past two years. Earlier this month, she was forced to flee the village of Bam near the border with Chad because of fighting between mainly Christian anti-balaka rebels and mostly Muslim Seleka insurgents. Her husband was killed and she broke her leg before finding refuge at a camp for displaced people in Batangafo, about 330 kilometers (204 miles) north of the capital, Bangui...