Complex sentence: The Oyo Empire, located primarily to the east of modern Benin, was the most significant large-scale military force in the region and it would regularly conduct raids and exact tribute from the coastal kingdoms and the tribal regions.
Split into simpler sentences: The Oyo Empire, located primarily to the east of modern Benin, was the most significant large-scale military force in the region. It regularly conducted raids and exacted tribute from the coastal kingdoms and the tribal regions.