Eritrea, as well as the Afar Region in Ethiopia, and Djibouti. They speak the Afar language as a mother tongue, and are predominantly Muslim. Afars in Eritrea number about 397,000 individuals, the smallest population out of the countries they reside in. In Djibouti, there are about 780,000 group members, and in Ethiopia, they number approximately 1,300,000. Saho The Saho represent 4% of Eritrea's population. They principally reside in the Debubawi Keyih Bahri Region and the Northern Red Sea Region of Eritrea. Their language is called Saho. They are predominantly Muslim, although a few Christians known as the Irob live in the Debub Region of Eritrea and the Tigray region of Ethiopia. Bilen The Bilen in Eritrea represent around 2% of the country's population. They are primarily concentrated in the north-central areas, in and around the city of Keren, and south towards Asmara, the nation's capital. Many of them entered Eritrea from Kush (central Sudan) in the 8th century and settled at Merara, after which they went to Lalibela and Lasta. The Bilen then returned to Axum in Ethiopia's Tigray Province, and battled with the natives; in the resulting aftermath, the Bilen returned to their main base at Merara. The Bilen include adherents of both Islam and Christianity. They speak the Bilen as a mother tongue. Christian adherents are mainly urban and have intermingled with the Tigrinya who live in the area. Muslim adherents are mainly rural and have interbred with the adjacent Tigre. Beja The Beja in Eritrea, or Hedareb, constitute under 5% of local residents. They mainly live along the north-western border with Sudan. Group members are predominantly Muslim and communicate in Hedareb as a first or second language. The Beja also include the Beni-Amer people, who have retained their native Beja language alongside Hedareb. Kunama According to the CIA, the Kunama constitute around 2% of Eritrea's population. They mainly live in the country's Gash Barka Region, as well as in adjacent parts of Ethiopia's Tigray Region. Many of them reside in the contested border village of Badme. Their language is called Kunama. Although some Kunama still practice traditional beliefs, most are converts to either Christianity (Roman Catholic and Protestant) or Islam. Nara The Nara represent under 5% of the nation's population. They principally reside along the south-western border with Sudan and Ethiopia. They are generally Muslim, with a few Christians and some practising their indigenous beliefs. Their language