What is the meaning of SI?

(Military) SI stands for one of the following: special intelligence; United States Strategic Command strategic instruction
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). si. Retrieved September 21, 2026, from http://smartdefine.org/si/definitions/1958930
ChicagoMilitary Dictionary (DoD). 2011. "si" http://smartdefine.org/si/definitions/1958930 (accessed September 21, 2026).
HarvardMilitary Dictionary (DoD) 2011, si, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/si/definitions/1958930>.
MLAMilitary Dictionary (DoD). "si" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/si/definitions/1958930>
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