The Nuba Mountains (also referred to as the Nuba Hills) is an area located in South Kordofan, Sudan. The area is home to a group of indigenous ethnic groups known collectively as the Nuba peoples. In the 18th century, Nuba Mountains became home to the kingdom of Taqali that controlled the hills of the mountains until their defeat by Mahdi Muhammad Ahmad. After the Mahdi's defeat by the British, Taqali was restored as a client state. Infiltration of the Messiria tribe of Baggara Arabs has been influential in modern conflicts.