(DoD) Participation by civilian and military agencies of a government in any of the action programs taken by another government or other designated organization to free and protect its society from subversion, lawlessness, insurgency, terrorism, and other threats to its security. Also called FID.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). foreign internal defense. Retrieved September 21, 2026, from http://smartdefine.org/foreign_internal_defense/definitions/1961810 |
| Chicago | Military Dictionary (DoD). 2011. "foreign internal defense" http://smartdefine.org/foreign_internal_defense/definitions/1961810 (accessed September 21, 2026). |
| Harvard | Military Dictionary (DoD) 2011, foreign internal defense, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/foreign_internal_defense/definitions/1961810>. |
| MLA | Military Dictionary (DoD). "foreign internal defense" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/foreign_internal_defense/definitions/1961810> |