Author: Lonely Cold Light
As early as in "The Art of War", there were records of spy wars, mainly five types of spies - due to the schizophrenic, internal, counter-spray, death and life. Because the enemy is using the enemy people as spies, the internal affairs use the enemy officials as spies, and the counter-spionage uses the enemy's spies as their own spies. When the death is to disturb the other party and sacrifice his life for justice, when the life is to disturb the other party and come back alive.
Spy is more important in the era of war. For example, there were many spies in the Spring and Autumn Period and Warring States Period, and Qin is the master of the inner world. For example, , Zhao State , , Guo Kai, , , Qi State , and , and , are all internal to Qin State, and they all made great efforts to unify the six countries. Although there have been spies since ancient times, the Three Kingdoms were the first period to establish spy agencies. Due to decades of war in the Three Kingdoms, spies were also quite active. The spies from the Three Kingdoms also have their own characteristics. The Eastern Wu is the best at using fraudulent surrender. Cao Wei has the most deaths, and Shu Han relies entirely on the personal charm of Liu Bei to influence it.
Ming Dynasty Jinyiwei , the Kuomintang Military Control Commission, this kind of similar early spy agency existed during the Three Kingdoms period.

in the movie Jinyiwei
Cao Cao used the emperor to order the princes to set up a school position in his prime minister's office. This position is similar to Jinyiwei , and its main job is to monitor the ministers of the court and the country. We all know that Cao Cao issued orders to the outside world in the name of the Han Dynasty, and many dissatisfied court officials wanted to overthrow Cao Cao. For example, the famous lace edict incident was a series of incidents in which important officials of the Han Dynasty wanted to overthrow Cao Cao. Later, Liu Bei and Yuan Shao both attacked Cao Cao under the name of Emperor Xian's " garment and belt ".

Yuan Shao
It is precisely because of this that Cao Cao really needs officials like school affairs to serve him Yuan Shao. Lu Hong and Zhao Da were the school staff at that time. The Han court officials were quite afraid of these two people, especially Zhao Da, who often let the families of these court officials be destroyed. After Cao Pi ascended the throne, the power of the school affairs continued to expand and the institutions continued to expand. At that time, not only court officials but also civilians were often implicated, and sometimes a case could involve tens of thousands of people. Neither during the reign of Cao Cao as prime minister nor later in the Cao Wei Dynasty, the legitimacy was sufficient. In addition, the Eastern Wu and Shu Han infiltrated each other at all times, Cao Wei's spy institutions were quite large.
In addition to Cao Wei, Dongwu also has the same spy agency. For example, the last emperor of Wu , Sun Hao, had a "monitoring war" and his mission was to monitor Wu. At that time, people in Wu State changed their minds. Sun Hao's reverse actions in have already aroused the disgust of the four major families in Jiangdong, and Sun Hao even needed spies to monitor and control the domestic situation.

Surveillance in China is just one of the roles of spies, and the real value is to reflect its foreign intelligence war. Just like the Kuomintang’s Military Control Commission and Zhongtong , although they have long been focusing on surveillance and control of the country. But during the War of Resistance Against Japan, he also shouldered the task of foreign intelligence war.
The intelligence war during the Three Kingdoms period can be ignored from the Yellow Turban Rebellion. Taiping Road leader Zhangjiao can quickly develop into such a huge force in a short period of time, which is directly related to the Central Secret Service Feng and Xu Feng in the Eastern Han Dynasty court. These two characters are Housheng of Qi and Guo Kai of Zhao. If someone hadn't informed me, the Yellow Turban Army would have had a greater momentum after the outbreak of and might be more difficult to control.
This is just the beginning of the Three Kingdoms intelligence war. The subsequent Dong Zhuo entered Beijing, and there was a spy war drama. Ding Yuan 's adopted son Lu Bu followed the troops into Luoyang , and a huge change occurred in Luoyang City at this time. General He Jin In order to kill the ten regular attendants, Ding Yuan was one of them. Because He Jin's plan to kill , the Ten Constables was exposed, he was killed by the Ten Constables. Later, Yuan Shao killed the Ten Changshi again.

Dong Zhuo
Ding Yuan has lost the meaning of garrison in Luoyang.At this moment, Dong Zhuo also arrived in Luoyang. Dong Zhuo wanted to accumulate Ding Yuan's subordinates, so he used money to bribe Lu Bu and kill Dong Zhuo with BMW.
The spy war has never stopped during the entire period of the chaos in the Three Kingdoms. Spy warfare also has its own characteristics. After early displaced, Liu Bei finally had the stable base of Jingzhou after the Battle of Red Cliffs. Liu Bei's process of seizing Yizhou was based on the two internal parts of Zhang Song and Fazheng . After being insulted by Cao Cao, Zhang Song turned to invite Liu Bei to enter Yizhou. Fa Zheng was Liu Bei's main counselor in seizing the entire Yizhou area. Liu Bei received the two internal ties not because of bribery, but because of his own descendants of the Han Dynasty.
During the Three Kingdoms period, the Han Dynasty declined and the north was already controlled by Cao Cao. At this time, a large number of people who were concerned about the Han Dynasty began to look for descendants of the royal family to make a comeback. Liu Zhang's father Liu Yan was a descendant of Liu Yu, the King of Lu Gong, when he was young, he became the Central Secretary as a member of the Han Dynasty, and then he became the position of governor of the state.

Lu Bu
Zhang Song and Fa Zheng saw that Liu Zhang was weak, so they would naturally focus their attention on Liu Bei, who was also the leader of the state. Yizhou has a complex terrain, and it would be difficult for Liu Bei to take over Yizhou in a short period of time without Fazheng help. At this time, Cao Wei still occupied Xiangyang . If Liu Bei could not get Yizhou in a short period of time, it would be difficult to say whether Cao Wei would go south.
After Liu Bei got Yizhou, his power reached its peak. At this time, Liu Bei spanned Jing and Yizhou and had initially completed the strategy of "Longzhong Pair". Guan Yu, the left-behind Jingzhou, also began to prepare for the attack on Xiangfan after Liu Bei won the battle of in Hanzhong. Guan Yu also used spy wars extensively during the attack on Xiangfan. Guan Yu used Liu Bei's royal family identity to persuade Hou Yin and Wei Kai to tie their boss, Nanyang Prefect Dongliguen . Faced with the momentum of Guan Yu's attack on Xiangfan, Jingzhou Governor Hu Xiu directly surrendered.

Guan Yu
Guan Yu even penetrated the rear of Cao Wei, and the rebels led by Sun Lang in the western Henan area also raised the banner of anti-Cao Xingliu. In the Battle of Xiangfan, if Guan Yu had not been subject to the weak force, he would have been very likely to have taken Xiangfan and directly targeted Xuchang .
Shu Han mainly relies on influence, while Cao Wei mainly relies on death. Death is the worst one in "The Art of War". Because the dead must achieve the purpose of disturbing the enemy at the cost of life. Moreover, one's own value is likely to be ineffective in the short term, such as the Qingzhou people sent by Cao Wei to Dongwu.
At that time, it was the period of Zhuge Liang's Northern Expedition . After Liu Bei's death, Zhuge Liang became the real ruler of Shu Han. At this time, Shu Han suffered two crushing defeats in Xiangfan and Yiling, and his strength was greatly damaged. After six years of renovation, Zhuge Liang began to attack Cao Wei. Due to the loss of Jingzhou, Zhuge Liang could only join forces with the Eastern Wu to fight against Cao. Emperor Ming of Wei Cao Rui Faced with the attack between the east and west, he wanted to rely on spies to disrupt the political situation of the Eastern Wu.

号号
号2号2号 pretended to defect to the Eastern Wu and became the Tingwei Supervisor of the Eastern Wu by being well-versed in the criminal law. The Eastern Wu Tingwei was divided into chief and deputy, and the chief position was the chief position, and the deputy position was the Tingwei Supervisor and the tingwei Ping. After Yinfan became the Tingwei, he paid a lot of money to win over important officials of the Eastern Wu. Yinfan mainly wins over two forces, one is the local family, and the other is the rebel generals of other countries.
Although the Eastern Wu was the Three Kingdoms regime that had the best integration of warlords and clans. But the Sun family was not a large Jiangdong clan after all, and they were innately in conflict with the local clans. This was also very obvious in Cao Wei and Shu Han. Not to mention the rebel generals, they can surrender to the Eastern Wu and of course they can surrender to Cao Wei.
The local sect of Dongwu Zhu Ju , surrendered generals Hao Pu and Pan Zhu were both guests of the Yinfan. If Yinfan’s plan is successfully implemented, it will cause great chaos within the Eastern Wu.But this plan was not successful in the end, and the incident of Yinfan was revealed in the second year. Because Sun Bu pretended to surrender, Wang Ling's troops in were going to enter the Eastern Wu to support him, which entered the trap set by Sun Quan .

Sun Quan
In order to save Wang Ling's troops, Wang Ling directly launched a rebellion, and Wang Ling was alert and withdrew his troops. Yinfan was naturally sent to prison by Sun Quan. Yinfan did not confess any of his accomplices in prison and was eventually executed by Sun Quan. Although this incident was successful, it also caused some chaos within the Eastern Wu. For example, Zhu Ju was completely hidden. After that, Sun Quan began to rise up a prison and learn from Cao Cao that he established the position of Zhongshu School Affairs, which caused chaos in the court and the country and everyone was in danger.
Cao Wei is also very likely to send Ma Mao to assassinate Sun Quan. Ma Mao was originally a subordinate of Wang Ling, but surrendered to the Eastern Wu due to disagreement with his superiors. Sun Quan appointed Ma Mao as the general of the Western Expedition and led a thousand soldiers. Sun Quan likes hunting very much, but because he is old, he often hunts in the palace. In 245 AD, Ma Mao launched a rebellion. On this day, Ma Mao and Zhu Zhen and other imperial guards conspired to assassinate Sun Quan, but the matter was exposed and was killed.

Fe Yi
Another successful case is Guo Xiu assassination of Fei Yi. After Zhuge Liang's death, talents in Jingzhou of Shu Han gradually withered. In 220 AD, Liu Bei lost Jingzhou. By 234 AD, Zhuge Liang passed away, and Jingzhou was no longer in the hands of Shu Han for 14 years. The talents in Jingzhou brought out by Liu Bei had long been exhausted. Zhuge Liang was followed by Jiang Wan, and Fei Yi was followed by Jiang Wan. At a banquet, Fei Yi was assassinated by the left general Guo Xiu. At this point, Liu Chan lost the assistance of Jingzhou talents, and the political situation began to be chaotic. Guo Xiu was an official of Cao Wei who was captured by Jiang Wei in the Northern Expedition.
is different from the above two, and Dongwu has always been deceptive and declining. For example, the bitter tricks of Huanggai and Zhou Yu are classic plots of false decline. The above-mentioned Sun Bu’s false surrender to Wang Ling is also a case. Another is the classic battle of Lu Xun . In the Battle of Shiting, Zhou Fang instigated Cao Xiu to send troops to support him in the name of offending the King of Wu. At this time, Lu Xun and others sent 90,000 troops to ambush near the Shiting, and Cao Xiu was eventually defeated. This battle also laid the foundation for Sun Quan to be emperor .

Lu Xun
Whether in ancient times or in modern times, in addition to the confrontation of military forces, war also has a great effect on spy war intelligence, which is also an important reason why spies have lasted forever.