The Simba Rebellion in 1964 trapped hundreds of white civilians in remote areas in north-eastern Congo. Many were maltreated, tortured, raped, imprisoned and slaughtered.
Helen Roseveare and a small party of her colleagues from the WCC Missionary Organisation were among those who suffered. After many dreadful experiences they were imprisoned and rescued from death only by the split-second intervention of a mercenary flying column.
The decision of Helen and her colleagues to return to Congo was made after much heart-searching. Today they are still there, helping to rebuild the country to which they have given their lives. Compiled and produced by ALAN BURGESS