Ouaddaï (Arabic: وداي‎) is a region of Chad, located in the south-east of the country, with its capital at Abéché. Prior to 2002 it was known as Ouaddaï Prefecture; in 2008 the southern portions of Ouaddaï (the Sila Department and Djourf Al Ahmar Department) were split off to become the new Sila Region (also known as Dar Sila).[2]