I'm going through a pile of books right now, some good, some not so good.
The best is Living with Bad Surroundings: War, History, and Everyday Moments in Northern Uganda. This is a must read for anyone that wants to understand what's been going on in northern Uganda for the last 20+ years. What makes it better than other accounts is that it doesn't oversimplify the situation, but instead shows it for the complicated nature it is.
And if complex histories of Africa don't scare you, I can't find a better description of what's been going on in central Africa for the last 15 years than Africa's World War.