Definitions for national security
Kernerman English Learner's Dictionary
national security(noun)ˌnæʃ əˈnæl ɪ ti
the safety of a nation, or actions taken to protect it
a threat to our national security; money spent on national security
The safety of a country as managed through the exercise of economic and political power, intelligence agencies and diplomacy.
Dictionary of Military and Associated Terms
A collective term encompassing both national defense and foreign relations of the United States. Specifically, the condition provided by: a. a military or defense advantage over any foreign nation or group of nations; b. a favorable foreign relations position; or c. a defense posture capable of successfully resisting hostile or destructive action from within or without, overt or covert. See also security.
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