Ambassadors are the highest representatives of their governments abroad. Their primary responsibility is to represent the interest of their government or head of state in the courts or capitals of other nations or group of nations.
Extension of policy
Protected by diplomatic immunity, an ambassador is generally the head of a foreign mission or embassy and is responsible for the administration of all the various offices related to the embassy. The embassy is an extension of policy or its representative in a foreign land and may contain different specialized sections such as the economic, political and consular sections.
Ultimate responsibility
Though all these sections have their designated heads the ultimate responsibility is that of the Ambassador. In terms of conflict or the pursuit of peace it is the Ambassador who represents the interest of his government abroad.