They also have a special armed police unit called the Special Police Operations Group (GOPE or "Grupo de Operaciones Policiales Especiales"). There is also an Elite Corps in charge of security in La Moneda Palace and for the President – the Presidential Guard Group whose cavalry troop is one of two horse guards units of the Republic, the latter having been raised recently and also serves as the youngest, and also sports a foot guards infantry battalion. The National Band of the Carabineros, the premiere representative marching band of the service (created in 1929), occasionally performs on state occasions and during the Guard Mounting at the La Moneda Palace and Citizenry Square on selected days with the Guard Group.