"A civil divorce"

"Africa's biggest country is poised to split into two. In January the south is due to hold a referendum on independence. If, as widely expected, it votes yes, it will create the continent's first new nation since Eritrea declared independence from Ethiopia in 1993.
"It is highly likely that the south will choose independence," Scott Gration, the US special envoy to Sudan, said last month. "I don't see that the north has to re-invade the south and start the war again. If we can resolve these issues, I think there is a fairly good chance that ... the south can have a civil divorce, not a civil war."

Mail&Guardian: Sudan votes, and stands on the brink of splitting in two, April 18, 2010