The Aksumite Empire was a kingdom centred in Northeast Africa and South Arabia from Classical antiquity to the Early Middle Ages. Based primarily in what is now northern Ethiopia, and spanning modern-day Eritrea, Djibouti and eastern Sudan, it extended at its height into much of modern day southern Arabia.
My (hopefully) first entry into the African category of the Summer Joust 2022. Based on the Age of Empires Ethiopian watchtower.