"Marine Groups" (Grupamentos de Fuzileiros Navais (GptFN) are subordinate to the Naval Districts (Distritos Navais), for the security of naval installations, as well as performing operations in support of the Naval District where they are assigned, while the 7th Marine Group is also tasked for public duties in the Brasilia area. They are located in the vicinity of the local Naval District headquarters. GptFNs are small-sized Marine battalions.
