(DoD) A medium like the land, sea, and air within which military activities shall be conducted to achieve US national security objectives.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). space. Retrieved September 20, 2026, from http://smartdefine.org/space/definitions/1964020 |
| Chicago | Military Dictionary (DoD). 2011. "space" http://smartdefine.org/space/definitions/1964020 (accessed September 20, 2026). |
| Harvard | Military Dictionary (DoD) 2011, space, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/space/definitions/1964020>. |
| MLA | Military Dictionary (DoD). "space" 4 April 2011. Web. 20 September 2026. <http://smartdefine.org/space/definitions/1964020> |