Letter of credence in the context of "Diplomatic correspondence"

Diplomatic recognition in international law is a unilateral declarative political act of a state that acknowledges an act or status of another state or government in control of a state (may be also a recognized state). Recognition can be accorded either on a de facto or de jure basis. Partial recognition can occur if many sovereign states refuse to recognize an entity as a peer. Recognition can be a declaration to that effect by the recognizing government or may be implied from an act of recognition, such as entering into a treaty with the other state or making a state visit. Recognition may, but need not, have domestic and international legal consequences. If sufficient countries recognize a particular entity as a state, that state may have a right to membership in international organizations, while treaties may require all existing member countries unanimously agreeing to the admission of a new member.

A vote by a country in the United Nations in favour of the membership of another country is an implicit recognition of that country by the country so voting, as only states may be members of the UN. On the other hand, a negative vote for UN membership does not necessarily mean non-recognition of the applicant as a state, as other criteria, requirements or special circumstances may be considered relevant for UN membership. Similarly, a country may choose not to apply for UN membership for its own reasons, as is the case with Vatican City, and Switzerland was not a member until 2002 because of its concerns to maintain its neutrality policy.

Diplomatic rank is a system of professional and social rank used in the world of diplomacy and international relations. A diplomat's rank determines many ceremonial details, such as the order of precedence at official processions, table seatings at state dinners, the person to whom diplomatic credentials should be presented, and the title by which the diplomat should be addressed.

His Majesty's Marshal of the Diplomatic Corps is a senior member of the Royal Household of the Sovereign of the United Kingdom. He is the King's link with the diplomatic community in London, arranges the annual diplomatic corps reception by the Sovereign, organises the regular presentation of credentials ceremonies for ambassadors and high commissioners, as well as supervises attendance of diplomats at state events. Marshals generally hold office for ten-year terms and were formerly retired senior military officers, though the last three marshals have been diplomats. The marshal is assisted by the Vice-Marshal of the Diplomatic Corps, the First Assistant Marshal, in addition to other assistant marshals.

The office was created as recently as 1920 to replace the former Master of the Ceremonies, an office dating from c.1620. Before 1920, the Vice-Marshal was known as the Marshal of the Ceremonies. The Marshal of the Diplomatic Corps wears a distinctive two-sided 17th-century badge of office, hung from gold chains (which was previously worn by the Master of Ceremonies): in times of peace the picture seen is an olive branch, together with the motto Beati Pacifici (the personal motto of James I); in times of war the medal is reversed, to show the image of a brandished sword and the motto Dieu et mon droit.