What is the meaning of D-day?

(DoD) See times.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). d-day. Retrieved September 23, 2026, from http://smartdefine.org/d-day/definitions/1954909
ChicagoMilitary Dictionary (DoD). 2011. "d-day" http://smartdefine.org/d-day/definitions/1954909 (accessed September 23, 2026).
HarvardMilitary Dictionary (DoD) 2011, d-day, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/d-day/definitions/1954909>.
MLAMilitary Dictionary (DoD). "d-day" 4 April 2011. Web. 23 September 2026. <http://smartdefine.org/d-day/definitions/1954909>
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