Residents go about their business watched over by an armed soldier inside Kibera Slum, Nairobi. Considered to be the largest slum in Africa with a population close to 1 million people. The living conditions in it are considered of extreme poverty with most housholds having no runing water or sanitation. The population is made up of all ethno-linguistic groups of Kenya drawing many residents from the poorest rural backgrounds.  (Photo by Christopher Pillitz/Getty Images)