All missions to the United Nations are known simply as "permanent missions", while EU member states' missions to the European Union are known as "permanent representations", and the head of such a mission is typically both a permanent representative and an ambassador. European Union missions abroad are known as EU delegations. Some countries have more particular naming for their missions and staff: a Vatican mission is headed by a nuncio (Latin for "envoy") and consequently known as an "apostolic nunciature". Under the rule of Muammar Gaddafi, Libya's missions used the name "people's bureau", headed by a secretary.