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
History of the Yoruba people intercity warfare amongst the Yoruba themselves. Archaeological evidence of the greatness of their ancient civilization in the form of, amongst other things, impressive architectural achievements like Sungbo's Eredo that are centuries old, nevertheless abound. Many Yoruba people organize themselves into villages, kingdoms, and towns. Major cities include the Ile-Ife, Oya, Lagos, Ibadan, Akure, and many other towns and cities. Some towns and cities of Yoruba people are their own civilization because people can share many of the same similarities. These cities are Warri, Benin city, Okene, and Auchi. Since the Yoruba religion started in Ile-Ife, the Yoruba diaspora has two