What is the meaning of FO?

(Military) FO stands for one of the following: fiber optic; flash override; forward observer
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). fo. Retrieved September 22, 2026, from http://smartdefine.org/fo/definitions/1955738
ChicagoMilitary Dictionary (DoD). 2011. "fo" http://smartdefine.org/fo/definitions/1955738 (accessed September 22, 2026).
HarvardMilitary Dictionary (DoD) 2011, fo, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/fo/definitions/1955738>.
MLAMilitary Dictionary (DoD). "fo" 4 April 2011. Web. 22 September 2026. <http://smartdefine.org/fo/definitions/1955738>
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