What is going on there?

A decade-long war in the east of the country between national, local and rebel groups motivated by a combination of racial hatred, power and greed. So far it has claimed the lives of an estimated 5 million civilians, mostly through disease and starvation, making it the most deadly conflict since World War II. The humanitarian crisis accompanying this still-rising death toll is one of the most serious in the world at the time of writing: hundreds of thousands have been uprooted from their homes and forced into the jungle or inadequate refugee camps where aid and food are scarce, child soldiers are forced to fight by all sides, and rape and sexual violence, unprecedented in scale and brutality, is commonly used as a tactic of terror. The UN and various charities are doing what they can, but many have criticised the international community for not doing enough to intervene and bring an end to the suffering.