Intelligence, in military science, is information concerning an enemy or an area. The term is also used for an agency that gathers such information.
(Encyclopædia Britannica)
Intelligence is the collecting and processing of that information about foreign countries and their agents which is needed by a government for its foreign policy and for national security, the conduct of non-attributable activities abroad to facilitate the implementation of foreign policy, and the protection of both process and product, as well as persons and organizations concerned with these, against unauthorized disclosure.
Bimfort, Martin T. A Definition of Intelligence. CIA Historical Review Program, 1994. (https://www.cia.gov/static/554d7d05a62d7d6de84b5b84ae6702ae/A-Definition-Of-Intelligence.pdf)
Many thanks to U.S. Naval War College for material and page design.
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