Servizio Informazioni Militare

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Servizio Informazioni Militare
Servizio Informazioni Militare (SIM)
Agency overview
Preceding agency
  • Various agencies
    (see text)
TypeMilitary intelligence agency
JurisdictionFlag of Italy (1861-1946) crowned.svg Kingdom of Italy
Agency executive

The Italian Military Information Service (Italian: Servizio Informazioni Militare, or SIM)[1] was the military intelligence organization for the Royal Army (Regio Esercito)[2] of the Kingdom of Italy (Regno d'Italia) from 1900 until 1946, and of the Italian Republic until 1949. The SIM was Fascist dictator Benito Mussolini's equivalent to the German Abwehr.

SIM had a large, well-organized cryptologic group, Section 5 (Sezione 5). Section 5 produced codes and ciphers for the Royal Army and higher level enciphered codes for the Italian Royal Navy.[3]


SIM had five major sections:

1) Sezione Calderini (espionage)
2) Sezione Bonsignore Calderini (counterespionage)
3) special services (sabotage and assassination)
4) cryptology
5) assessments[4]

See also[edit]



  • Heiber, Helmut, and Glantz, David M. (2005). Hitler and His Generals: Military Conferences 1942-1945. New York: Enigma Books. ISBN 1-929631-09-X.
  • Kennedy, David M., Wagner, Margaret E., Osbourne, Linda Barrett, Reyburn, Susan, and the Staff of the Library of Congress (2007). The Library Congress World War II Companion. New York, London, Toronto, Sydney: Symon & Schuster. pp. 982. ISBN 978-0-7432-5219-5.