An excellent short history of the Karamojong people in the twentieth century can be found in this interview with Dr. Sandra Gray, an anthropologist who works in the region. The interview ends with the question, "Do these people have any political support within their own country?" Dr. Gray's answer:
Everybody hates pastoralists. They're among the last groups in the world it's still politically OK to trash. They're derided for letting their sheep and goats and zebu overgraze the land and turn it into desert.
That's a lie. They did just fine for centuries.