 Five Haya kings took up the offer while the others remained honorary kings and continued to perform their traditional religious and ceremonial duties.In 1978, the ancestral region to which the Haya belong was subject to an attempted annexation by the former Ugandan president Idi Amin Dada, whose invasion of the Kagera region in the Uganda-Tanzania War eventually led to the toppling of his government by the Army of Tanzania.Haya kings ("bakama") had absolute rule over their territory and assigned duties to specific clans.