What is the meaning of air defense sector?

(DoD) A geographical subdivision of an air defense region.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). air defense sector. Retrieved September 21, 2026, from http://smartdefine.org/air_defense_sector/definitions/1960158
ChicagoMilitary Dictionary (DoD). 2011. "air defense sector" http://smartdefine.org/air_defense_sector/definitions/1960158 (accessed September 21, 2026).
HarvardMilitary Dictionary (DoD) 2011, air defense sector, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/air_defense_sector/definitions/1960158>.
MLAMilitary Dictionary (DoD). "air defense sector" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/air_defense_sector/definitions/1960158>