Oyo Empire culture in Oyo where victory was obligatory and defeat carried the duty of committing suicide. This do-or-die policy no doubt contributed to the military aggressiveness of Oyo's generals. The Oyo Empire was the only Yoruba state to adopt cavalry; it did so because most of its territory was in the northern savannah. The origin of the cavalry is disputed; however, the Nupe, Borgu and Hausa in neighboring territories also used cavalry and may have had the same historical source. Oyo was able to purchase horses from the north and maintain them in metropolitan Oyo because of partial freedom from the
Shaki, Oyo Shaki, Oyo Shaki (also Saki) is a town situated in the northern part of Oyo State in western Nigeria. The terrain is hilly. The town lies near the source of the Ofiki River, the chief tributary of the Ogun River, about 40 miles (60 km) from the Benin border. It is referred to as the food basket of Oyo State because of its agricultural activities. It is the headquarters of Saki West local government authority. Originally part of the Oyo Empire, Shaki became a Yoruba refugee settlement after the destruction in 1835 of Old Oyo (Katunga), 70 miles (113 km)