Units that traditionally perform ceremonial duties, such as Guard Mounting (changing of the Queen's Guard) or Trooping the Colour, are the five regiments of Foot Guards and the Household Cavalry (Blues and Royals and Life Guards), which form the Household Division whilst the Honourable Artillery Company form the Guard of Honour when foreign Heads of State visit London. The Royal Air Force's ceremonial unit is the Queen's Colour Squadron. The British Armed Forces do not have dedicated ceremonial units other than the King's Troop, Royal Horse Artillery, the Guards and Royal Regiment of Scotland Incremental Companies and the Royal Air Force's Queen's Colour Squadron.