The British Household Cavalry, is an army corps (pronounced "core") of two regiments of soldiers. Cavalry regiments, until the end of World War I, were always "mounted" on horses. Nowadays "cavalry regiments" are mounted on tanks. The British Household Cavalry is unusual because half of them are also still mounted on horses. The two Regiments of Household Cavalry, the Household Cavalry Mounted Regiment, which parades with horses and the Household Cavalry Regiment, which has light armoured vehicles, are manned by equal numbers of soldiers from The Life Guards and The Blues and Royals both of which are part of the "Household Division". In Britain the "Household Division" has the special privilege of guarding the Sovereign and the Royal Household. The term "Household Division" is used in all Commonwealth countries. 