#intelligence_operation__intelligence__intelligence_activity  the operation of gathering information about an enemy
  supertype:  information_gathering__informationgathering  the act of collecting information
  subtype:  undercover_work__spying  the act of keeping a secret watch for intelligence purposes
     subtype:  espionage  the systematic use of spies to get military or political secrets
  subtype:  current_intelligence__currentintelligence  intelligence of all types and forms of immediate interest; usually disseminated without delays for evaluation or interpretation
  subtype:  tactical_intelligence__combat_intelligence  intelligence that is required for the planning and conduct of tactical operations
     subtype:  terrain_intelligence__terrainintelligence  tactical intelligence on the natural and man-made characteristics of an area
  subtype:  strategic_intelligence__strategicintelligence  intelligence that is required for forming policy and military plans at national and international levels
  subtype:  signals_intelligence__signalsintelligence__SIGINT  intelligence information gathered from communications intelligence or electronics intelligence or telemetry intelligence
     subtype:  electronics_intelligence__electronicsintelligence__ELINT  intelligence derived from non-communications electromagnetic radiations from foreign sources (other than radioactive sources)
     subtype:  communications_intelligence__COMINT  technical and intelligence information derived from foreign communications by other than the intended recipients
     subtype:  telemetry_intelligence__telemetryintelligence__TELINT  intelligence derived from the interception and processing and analysis of foreign telemetry
  subtype:  clandestine_operation__clandestineoperation  an intelligence operation so planned and executed as to insure concealment
  subtype:  overt_operation__overtoperation  the collection of intelligence openly without concealment
  subtype:  reconnaissance  the act of reconnoitring (especially to gain information about an enemy or potential enemy)
     subtype:  recce__recco__reccy  reconnaissance (by shortening)
     subtype:  scouting__exploratory_survey__exploratorysurvey__reconnoitering__reconnoitring  exploring in order to gain information; "scouting in enemy territory is very dangerous"
     subtype:  air_reconnaissance__airreconnaissance  reconnaissance either by visual observation from the air or through the use of airborne sensors
     subtype:  reconnaissance_by_fire  a method of reconnaissance in which fire is placed on a suspected enemy position in order to cause the enemy to disclose his presence by moving or returning fire
     subtype:  reconnaissance_in_force  an offensive operation designed to discover or test the enemy's strength (or to obtain other information)
     subtype:  electronic_reconnaissance  the detection and identification and evaluation and location of foreign electromagnetic radiations (other than radioactive)
  subtype:  counterintelligence  intelligence activities concerned with identifying and counteracting the threat to security posed by hostile intelligence organizations or by individuals engaged in espionage or sabotage or subversion or terrorism
     subtype:  counterespionage  spying on the spies
     subtype:  security_intelligence  intelligence on the identity and capability and intentions of hostile individuals or organizations that may be engaged in espionage or sabotage or subversion or terrorism
     subtype:  security_review__censoring__censorship  counterintelligence achieved by banning or deleting any information of value to the enemy
        subtype:  military_censorship  all types of censorship conducted by personnel of the armed forces
           subtype:  civil_censorship__civilcensorship  military censorship of civilian communications (correspondence or printed matter of films) entering or leaving of circulating within territories controlled by armed forces
           subtype:  field_press_censorship__fieldpresscensorship  security review of news (including all information or material intended for dissemination to the public) subject to the jurisdiction of the armed forces
           subtype:  prisoner_of_war_censorship  military censorship of communication to and from prisoners of war and civilian internees held by the armed forces
           subtype:  armed_forces_censorship  military censorship of personal communications to or from persons in the armed forces
              subtype:  primary_censorship__primarycensorship  armed forces censorship performed by personnel of a military unit on the personal communications of persons assigned to that unit
              subtype:  secondary_censorship__secondarycensorship  armed forces censorship of the personal communications of officers or civilian employees or enlisted personnel not subject to primary censorship
        subtype:  national_censorship  censorship under civil authority of communications entering or leaving of crossing the borders of the United States or its territories or possessions
     subtype:  countersubversion  the aspect of counterintelligence designed to detect and prevent subversive activities
     subtype:  counter-sabotage__countersabotage  counterintelligence designed to detect and counteract sabotage

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