ADVERTISEMENT The Sultan of Sokoto, Sa’ad Abubakar III, has blamed the lack of understanding among Nigerians, as the major challenge facing the country. He said for Nigeria to achieve peace, “citizens must understand one another”. The Sultan, who stated this at the inauguration of the Inter-Tribal Traditional Leaders Association of Nigeria, in Kano, on Friday, described the formation of the association as timely, in view of the country’s security challenges. The News Agency of Nigeria (NAN) reports that the Sultan, who is also the President, Supreme Council for Islamic Affairs in Nigeria, explained that the leaders must work assiduously towards unity and tolerance among ethnic groups in the country.