The title Consul is use for the official representatives of the government of one state in the territory of another, normally acting to assist and protect the citizens of the consul's own country, and to facilitate trade and friendship between the people of the country to whom he or she is accredited and the country of which he or she is a representative. This distinguishes the consul from the ambassador or chargé d'affaires, who is, technically, a representative from one head of state to another. Thus, while there is but one ambassador representing a nation's head of state to another, and his or her duties revolve around diplomatic relations between the two countries, there may be several consuls, one in each of several main cities, providing assistance with bureaucratic issues to both the citizens of the consul's own country travelling or living abroad, and to the citizens of the country the consul is in who wish to travel to or trade with the consul's country.