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Practice Counterintelligence |
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There is no place where espionage is not possible. If plans relating to spying operations are prematurely divulged, the spy and all those to whom he spoke of them should be put to death. |
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Generally, whether it be armies that you wish to strike, cities that you wish to attack, and individuals that you wish to assassinate, it is necessary to find out the names of the garrison commander, the aides-de-camp, the ushers, gatekeepers, and bodyguards. You must instruct your spies to ascertain these matters in minute detail. |
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It is essential to seek out enemy spies who have come to conduct espionage against you and bribe them to serve you. Courteously exhort them and give your instructions, then release them back home. Thus, converted spies are recruited and used. It is through the information brought by the converted spies that native and internal spies can be recruited and employed. It is owing to their information, again, that the doomed spies, armed with false information, can be sent to convey it to the enemy. Lastly, it is by their information that the surviving spies can come back and give information as scheduled. The sovereign must have full knowledge of the activities of the five sorts of spies. And to know these depends upon the converted spies. Therefore, it is mandatory that they be treated with the utmost liberality. |
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In ancient times, the rise of the Shang Dynasty was due to Yi Zhi, who had served under the Xia. Likewise, the rise of the Zhou Dynasty was due to Lu Ya, who had served under the Yin. Therefore, it is only the enlightened sovereign and the wise general who are able to use the most intelligent people as spies and achieve great results. Spying operations are essential in war; upon them the army relies to make its every move. |
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