Libya is a North African country located to the west of Sudan, with a population of around 6.8 million people. Eritrea is a country located in the Horn of Africa, to the northeast of Sudan, with a population of around 5.7 million people. CHAD is a landlocked country located in Central Africa, to the south of Sudan, with a population of around 15.4 million people. Uganda is a country located in East Africa, to the east of Sudan, with a population of around 44.5 million people. All four countries are neighbors of Sudan.