A unitary State is one in which the supreme governmental authority is vested by the constitution in a single central government which rules the whole country. For administrative convenience, the country is divided into various provinces, cantons or departments, with their own local administrative bodies. But these local governments exercise only such governmental powers as are delegated to them by the central government. In other words, the relations between the central government and the local governments in a unitary State are those of subordination and under central administrative control.<\/p>