Cayenne Battery

The Cayenne Battery (formally, Historical Cayenne BatteryPortuguese: Bateria Histórica Caiena) of the Brazilian Army is one of three military units that comprise the Brazilian president's honor guard, the others being the 1st Guards Cavalry Regiment (Portuguese: 1º Regimento de Cavalaria de Guardas – RCG) – "Independence Dragoons" and the Presidential Guard Battalion (Portuguese: Batalhão da Guarda Presidencial – BGP).

"Cayenne Battery" was the name for the Brazilian colonial troops sent by John VI to the Portuguese conquest of French Guiana in 1809. Nowadays, it is part of 32nd Artillery Campaign Group, but falls within the 1st Guards Cavalry Regiment due to the necessity of horses. It uses horse-drawn cannons and is responsible for 21-gun salutes at special ceremonies.