Has a government controlled by Arab Muslims but the population is mostly ethnically African is this Sudan

Yes, this description is likely referring to Sudan. Sudan is a country in North Africa where the government has historically been controlled by Arab Muslims, particularly during the rule of former president Omar al-Bashir. However, the population of Sudan is ethnically diverse, with a significant number of people being of African descent, particularly in regions like Darfur and South Kordofan.