SIOS
Servizio Informazioni Operative e Situazione was an Italian military intelligence and security service serving from 1949 until 1997. Its main duty was safeguarding the internal security of military bases and its personnel and military intelligence activities against enemy and foreign forces, especially through SIGINT activities.
It was composed of three divisions: the SIOS Marina, the SIOS Aeronautica and the SIOS Esercito. Some SIOS personnel came from the ranks of the Arma dei Carabinieri for the power of Military Police that Carabinieri has. The SIOS personnel operated under the authority of the chief of staff of their respective armed forces, and they also shared coordination goals with SIFAR.
Since 1998, the II Reparto informazioni e sicurezza - II RIS and its intelligence branch: CII, Centro Intelligence Interforze, serves at the joint level the same purposes previously attended by the SIOS.
