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, and insurgency. Also called FID. (JP 3-05)
FOREIGN INTERNAL DEFENSE
Meaning of FOREIGN INTERNAL DEFENSE in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012