Zhao Bing began to establish his own independent intelligence agency when he was in power. Over the past decade, from nothing to something, from weak to strong, and has also been quite large. He has basically covered key prefectures and counties in the Jiangnan region internally, and monitored key departments and key figures; external tentacles have established a complete intelligence network from the battlefield where the two armies confronted each other to the two capitals in the Mongolian Yuan territory, and began to penetrate into military important places, and basically monitored the political trends, troop mobilization and political and economic situations at the Mongolian Yuan.

Similarly, the Mongol Yuan's intelligence collection work on its own side has not stopped. Not only did it use the subordinates and old officials left in Jiangnan to obtain intelligence, but it also used the surrendered officials who escaped attack and censorship to infiltrate its own government agencies. It also constantly bribed people of all walks of life who were dissatisfied with it to carry out sabotage activities. At the same time, it sent spies to Jiangnan to directly participate in the operation.

As Zhao Bing knows, Boyan, who is in charge of military affairs in the Lianghuai, set up an intelligence agency specifically targeting the Song Dynasty in Jiangbei, responsible for espionage and counter-espionage affairs. It requires review and implementation of everything in detail. This institution has great power, and even has the power to kill and kill. It can arrest, interrogate and execute middle and low-level officials without asking for instructions. Its power is comparable to the collection of the CIA and FBI in the United States during the Cold War.

The spies sent to Jiangnan in the Mongol Yuan were mainly recruited from the Han people on the military demarcation line along the river. In addition, the drivers captured to Jiangbei were also one of the important sources. These people were originally Song people, and their accents, behaviors and living habits were no different from those of the locals. In this period of slow information transmission and the chaotic period when the war had just ended, it was really difficult to identify them one by one. It was easy to regain household registration as refugees, and even lurked in the land. Thus, they mixed into the army and the government through recruiting troops and imperial examinations.

In addition, in order to facilitate their activities, the spies sent by the Mongol Yuan naturally had to use various identities as cover. Among them, the more commonly used identities are merchants and monks. Although the Mongol Yuan did not set up a tent on the border for transactions, it did not prohibit foreign merchants from entering the country through sea to participate in cross-border trade. This provided the possibility for the Mongol Yuan to send intelligence personnel, especially if they could use the Goryeo maritime merchants affiliated with them as spies, and they could collect intelligence in Jiangnan in a noble place.

Mongols and Yuan spies disguised as monks often operated in the Song Dynasty under the name of "monks traveling around the world", or lurked to collect information after becoming a monk in Jiangnan temples or Taoist temples. Zhao Bing had no good idea, so he could only ask the temples and Taoist temples to register the newly taken in religious figures in detail, report to the competent department, and inform the local government.

These Mongols and Yuan intelligence personnel would not only pass on the military intelligence they collected back to their country, but also invested heavily in the poetry and political commentary of their own bureaucrats and literati, and obtained intelligence through interpretation and understood the political trends of the Song Dynasty. Various publicly issued tabloids in the capital were also the targets they focused on collecting. They not only included trivial matters from the people, but also the decrees issued by the court and the views expressed by officials. Naturally, the required intelligence can be collected. Even in modern times, senior spies in many countries will not steal intelligence through fighting, killing, but can only search through the newspaper and read the news to find what they want.

In addition to these methods, places where people frequently enter and exit the restaurants, teahouses, brothels, and inns and wharfs are often places for information exchange. As long as you pay attention, you can still obtain useful information from words and phrases, it is naturally a place where spies often go in and out. And like in modern times, those envoys who enter the country under diplomatic missions often shoulder the responsibility of collecting intelligence, which is also one of the pretexts for their intelligence activities.

Although the Song Dynasty strictly guarded and restricted the activities of foreign personnel through various methods in counter-espionage, it could not completely cut off the activities of enemy spies. Even if there is a dangerous obstacle in the Yangtze River, it could not completely block their exchanges. After all, it is impossible for people to monitor the river bank thousands of miles away, and this task is difficult to achieve in modern times. Although foreign merchants are restricted from trading in certain cities, local merchants from all over the country can also bring them the news they want.

Therefore, Zhao Bing can only use strict discipline to restrict the military by educating the military, and establishing special institutions in the military to implement countermeasures. Government departments use strict access systems to carefully review personnel entering core departments. Persons with unknown backgrounds cannot enter, and key personnel will also be monitored by the Bureau of Affairs.

The most difficult thing to guarantee that there will be no leaks is the two institutions that control the production and research and development of firearms. For humanity, Zhao Bing did not manage the craftsmen in a prison-like manner as in the past. As the two institutions have craftsmen expanded, there are nearly 20,000 people working in it, and there are more peripheral cooperative personnel.

How to prevent enemy intelligence personnel from infiltration and stealing intelligence is a big problem. Zhao Bing used a meticulous method of division of labor and division of the production of a weapon into numerous processes to ensure that even if someone leaks secrets, all the technology and technology cannot be obtained. Judging from the local firearms seized in this naval battle, he found that there was not much improvement compared to the copper musket seized in Quanzhou ten years ago, and the power of gunpowder is difficult to meet, which shows that the confidentiality work is still very successful.

As the top secret, the gunpowder formula has always been in the hands of three people, including Zhou Xiang. No wonder Zheng Huchen was very nervous when he found out that he was suspected of leaking the secret. If he rebels against the enemy, it could be said to be a devastating blow to the Song Dynasty, and his advantage in weapons would certainly be gone, so he hurriedly entered the palace to report...

"Your Majesty used Zhou Xiang as bait to deliberately leak the news. I am afraid that it is not just about building a city along the Mongols and Yuan shores? Do you need help from subordinates?" Zheng Huchen, of course, was relieved after hearing the little emperor's explanation and asked.

After all, he and Zhou Xiang are friends of life and death, and it is not a very fulfilling thing to arrest his former brothers with their own hands. At the same time, they are also secretly glad that after discovering it, they report to the emperor in time that if such a major "leakage" incident is not discovered in time, it is a dereliction of duty, and intentionally concealing it will be even more guilty. Who knows whether there is a little emperor who tests him. At that time, not only will he lose his holy heart, but he will be punished strictly. After all, his position is very sensitive and he will be betrayed at all. Once the emperor becomes suspicious, he will be sentenced to death.

"Of course, how can this matter be separated from the participation of your affairs bureau? If you don't come, I will go to you. Such a big game of chess is beyond the control of Zhou Xiang!" Zhao Bing said with a smile.

"I will definitely do my best to cooperate with Your Majesty to complete it!" Zheng Huchen said.

"Well, the Mongols lost in the spring battle, but it also exposed the strength of our army, which made Boyan feel alert, changed the strategy of the southern invasion, and turned to the defensive. This would have huge resistance to our recovery of Jiangbei, so we must try to crack it." Zhao Bing wiped his hands and expressed his intentions.

"Your Majesty asked Zhou Xiang to deliberately reveal that our dynasty had a sharp weapon to destroy the city, which was to let Meng Yuan know that no matter how strong the city was, it was difficult to resist. He intended to give up his plan to build the city." Zheng Huchen asked carefully.

"No, I'm asking them to build the city stronger!" Zhao Bing shook his head and smiled.

"This... I am stupid, please let Your Majesty make it clear!" Zheng Huchen said in a daze. His heart was full of doubts. Didn't the little emperor mean that he wanted to trick Meng Yuan into holding a big killing weapon, even if you cultivate into a city, it would be difficult for you to resist. Why did Meng Yuan waste his energy even though he knew it was difficult for him to resist!

"The reason is very simple, Boyan is not stupid." Zhao Bing picked up a grape and threw it into his mouth and chewed it.

"It's that simple?" Zheng Huchen's mind was a little unable to keep up with the little emperor, and he couldn't believe it.

"Although the war was not large in the past, our army used many firearms, and their power must have been passed to Boyan. Therefore, he knew very well that in front-line confrontation, he could not resist the power of firearms. Moreover, in the Lianghuai area with dense water networks, our navy has an advantage and its maneuverability is not inferior to that of the cavalry. Then he came up with the idea of ​​building a fortress and rebuilding the city defense to offset the power of the firearms. At the same time, after being attacked, he could enter the city to defend and wait for assistance to gain time for the arrival of the cavalry." Zhao Bing said.

"In the past, we were always tight-lipped about the manufacturing of firearms. We did not invest in actual combat on a large scale until the battle to recover the Jiangnan Campaign. I believe Boyan knew this. As soon as they started to build a fortress, we released a sharp weapon to break the city and were not afraid at all. What would you think if Boyan was?" Zhao Bing asked again.

"If my subordinates knew about this joint, they would definitely have doubts, doubting whether they were trying their best to cheat us and deceive us to give up the city building." Zheng Huchen thought for a moment and asked.

"Yes, then what will you do next?" Zhao Bing continued.

"I have seen the power of a firearm before. It can break through mountains and rocks, so I will be skeptical, that is, I do not fully believe that the other party has such a weapon, and I am worried that it is true. After all, this news was spoken from the head of the military weapon supervisor, so I will raise the standards for building a city with an attitude of not believing that it is not trustworthy, just in case." Zheng Huchen said.

"I think Boyan has led the army to fight for many years, but he has suffered repeated setbacks in our hands. He must not dare to be as calm as before. In addition, his age is getting older and his spirit gradually fades, and commanding operations will become increasingly conservative. I think he will probably fall into the trap." Zhao Bing said with a chuckling.

"Your Majesty is really a clever idea. I can't think that Boyan can't get into the pit." Zheng Huchen said with a wry smile. The real and false emperor made people dizzy, making people unable to think that it was difficult to fall into the trap, but suddenly I felt something was wrong. "If Boyan really strengthens the city defense and builds a strong city as His Majesty said, if our army launches a large-scale attack in the future, wouldn't it cause us great suffering?"

"Haha, this city is not made of paper or mud. If you want to repair it, you need this..." Zhao Bing smiled and twisted his fingers.

"Oh, Your Majesty's intention is to build forts along the river. The construction of cities in the Huai River requires a lot of financial and manpower. After the Mongol Yuan lost the south of the Yangtze River, the finances were increasingly exhausted. Building city defenses would only accelerate the consumption of money and would be difficult to support future wars." Zheng Huchen understood at a glance, and thought to himself that the little emperor was too far around, clearly trying to reduce his national strength by consuming money, which would lead to a decrease in his war potential and create conditions for his own counterattack on the Central Plains.

"Yes, this is just one of the purposes!" Zhao Bing nodded.

"What's your intention?" Zheng Huchen said in surprise. The purpose of his heart's words was enough to achieve a pot of Meng Yuan. Unexpectedly, His Majesty had a trick!

"Boyan is a strong enemy of our dynasty. He was in charge of the invasion of Jiangnan and has been in charge for many years. He is familiar with Jiangnan's humanities and geography. If he does not remove him, he will always be a problem for us." Zhao Bing said angrily.

"Your Majesty said it is true. Boyan is indeed talented. He can fight and help the country with his horse. He has gained the trust of real gold. But it is not easy to get rid of it!" Although Zheng Huchen was extremely impressed by the young emperor's agility and ability to do things, he still found it difficult to remove Boyan based on just one false news.

"Building a city costs a lot of money. To improve the defense system of the two Huaihe Rivers, it must be exhausted. However, after the Mongolian Yuan lost the financial resources of Jiangnan, it has led to financial difficulties and was unable to make ends meet. The two Huaihe Rivers have become an important source of taxes. But if Boyan misappropriated the taxes that should be paid for this, it will inevitably cause dissatisfaction among the court, and it will be difficult to protect the real money at that time. Of course, there are some means to use them." Zhao Bing explained.

"The party struggles between the Mongolian and Yuan dynasties are becoming increasingly serious. There are both Chinese-style factions that support real gold and hope to maintain traditional orthodox factions. But as long as real gold supports Boyan, it is not easy to destroy him." Zheng Huchen frowned and said.

"Now Boyan can suppress the old people because he has the favor of real gold and his prestige among the orthodox sects. This is not just a red mouth and white teeth. It is better to give them enough benefits. However, the Chinese faction has always regarded him as a barbarian and has not included him in the same stream. It is just a combination of appearance and separation," Zhao Bing said, "Next, we only need to provoke conflicts between the two sides and provide some more excuses to Boyan's opponents. In the midst of public opposition, I am afraid that it will be difficult for real gold to protect him. Besides, his support for the southern invasion failed, and real gold is afraid that he has already had a grudge against him."

"How will Your Majesty plan to provoke? It's not just a knife to kill people, right?" Zheng Huchen was even more surprised when he heard the little emperor's plan. This was not just about eliminating Boyan, but about disrupting the political situation of the Mongolian Yuan and causing them to have civil strife.

"It's not just about killing people with a knife, it's just fishing for troubled waters!" Zhao Bing waved his hand after thinking for a moment.

"Then how will Your Majesty mess up the water in this pond?" Zheng Huchen asked afterwards.

"Build Lin'an City!" Zhao Bing said with a wicked smile.
Chapter completed!