Background: Military regimes favoring Islamic-oriented governments have dominated national politics since independence from the UK in 1956. Sudan was embroiled in two prolonged civil wars during most of the remainder of the 20th century. These conflicts were rooted in northern economic, political, and social domination of non-Muslim, non-Arab southern Sudanese. The first civil war ended in 1972, but broke out again in 1983. The second war and famine-related effects resulted in more than 2 million deaths and over 4 million people displaced over a period of two decades. Peace talks gained momentum in 2002-04 with the signing of several accords; a final Naivasha peace treaty of January 2005 granted the southern rebels autonomy for six years, after which a referendum for independence is scheduled to be held. A separate conflict that broke out in the western region of Darfur in 2003 resulted in tens of thousands of deaths and over 1 million displaced, but by early 2005, peackeeping troops had stabilized the situation.