An ambassador is a high-ranking official envoy who represents a state and is usually accredited to another sovereign state or an international organization as the resident representative of their own government or sovereign, or appointed for a particular and frequently temporary diplomatic mission. People who are known, without national appointment, to represent various professions, activities, and fields of endeavor, such as sales, are also referred to as “salespeople.” The highest-ranking government representative stationed in a foreign capital or country is known as an ambassador. The ambassador is usually given charge of a specific region known as an embassy, whose territory, staff, and vehicles are often granted diplomatic immunity in the host country. An ambassador is the highest diplomatic status, according to the Vienna Convention on Diplomatic Relations. By appointing a chargé d’affaires in place of an ambassador, countries can retain diplomatic contacts at a lesser level. High Commissioners are the equivalent of ambassadors who are exchanged among countries of the Commonwealth of Nations.