Intelligence and Espionage,用间 - Sun Tzu Art of War Chapter 13
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Intelligence and Espionage,用间 is Chapter 13 of Sun Zi Art of War.
Costs of War
Original: 孙子曰：凡兴师十万，出征千里，百姓之费，公家之奉，日费千金；内外骚动，怠于道路，不得操事者，七十万家。
English: Sun Zi said: Raising an army of 100,000 for a distant military campaign will...
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Why Intelligence
Original: 相守数年，以争一日之胜，而爱爵禄百金，不知敌之情者，不仁之至也， 非人之将也，非主之佐也，非胜之主也。故明君贤将，所以动而胜人，成功出于众者，先知也。
English: Two opposing armies may be at war with each other for...
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Where to Gather Intelligence
Original: 先知者不可取于鬼神，不可象于事，不可验于度，必取于人，知敌之情者也。
English: This foreknowledge cannot be obtained from...
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Types of Spies
Original: 故用间有五：有因间，有内间，有反间，有死间，有生间。五间俱起，莫知其道，是谓神纪，人君之宝也。
English: There are five kinds of secret agents that can be used. They are...
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Descriptions of Spies
Original: 因间者，因其乡人而用之。内间者， 因其官人而用之。反间者，因其敌间而用之。死间者，为谈事于外，令吾间知之，而传于敌间也。生间者，反报也。
English: Local agents are ordinary people recruited from...
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Relationship with Spies
Original: 故三军之事，莫亲于间，赏莫厚于间，事莫密于间。
English: Thus, among all military relationships, none can be...
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Who & Where to Use Spies
Original: 非圣智不能用间，非仁义不能使间，非微妙不能得间之实。 微哉微哉！无所不用间也。
English: Only those who are wise will be able to...
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When Espionage Activities Leak
Original: 间事未发而先闻者，间与所告者皆死。
English: When espionage activities and secret operations have been...
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Seeking Information
Original: 凡军之所欲击，城之所欲攻，人之所欲杀，必先知其守将、左右、谒者、门者、舍人之姓名，令吾间必素知之。
English: There may be army you wish to strike, cities you wish...
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Creating Double Agents
Original: 必素敌间之来间我者，因而利之，导而舍之，故反间可得而用也。
English: The secret agents of the enemy who are spying...
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Importance of Double Agents
Original: 因是而知之，故乡间、内间可得而使也； 因是而知之，故死间为诳事，可使告敌。因是而知之，故生间可使如期。五间之事，主必知之， 知之必在于反间，故反间不可不厚也。
English: It is through information gained from double agents that...
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Espionage & Victory
Original: 昔殷之兴也，伊挚在夏；周之兴也，吕牙在殷。故明君贤将，能以上智为间者，必成大功。此兵之要，三军所恃而动也。
English: In ancient times, the rise of the Shang Dynasty over the Xia Dynasty was because...
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