Chen Gong's "Chi Zhi" is not omnipotent, and its effect is that "when reviewing the battle situation or the general trend, there will be additional calculation bonuses for what has happened", so Chen Gong was able to accurately judge the overall situation after Gongsun Chan killed Liu Yu and Yuan Shao broke Gongsun Chan.

However, for example, the "Wancheng Change", the direct cause of which is Cao Cao's "good wife", has nothing to do with the "general trend", so no matter how much "Chi Zhi" adds to the calculation, Chen Gong can't expect this kind of thing......

It took more than ten days for Bai Tu to get the news - almost entirely by the official channels of the Han family!

Cao Cao was attacked by Zhang Xiu in Anhui City, and Su Wei Dian Wei broke through in battle when his armor was stolen, as if a demon god had descended into the world, and he beheaded Hu Che'er and hundreds of guards, and was seriously injured, and still forced Zhang Xiu to retreat more than ten times......

Dian Wei's "unexpected" breakthrough not only allowed him to renew his own life, but also allowed Cao Cao's large army to be safely evacuated, and Xiahoudun led the army to respond.

However, even so, Cao Cao still suffered heavy losses this night, his nephew Cao Anmin and eldest son Cao Ang were killed by the angry Zhang Xiu, and most of the former army stationed in Wancheng was broken, and the army was also sharp, so he had to return to the court.

Although Bai Tu did not elaborate on the news he got, it is certain that this matter must have attracted a lot of criticism for him within Cao Cao's camp.

After all...... The cause of this battle is really hard to see.

Even in the court, Cao Cao's arrogance inevitably weakened, and Yang Biao, who was arraigned by full favor, still did not confess any evidence after being tortured, and Cao Cao could only release him.

A group of courtiers also put pressure on Cao Cao, urging him to crusade against the rebels in Huainan.

These courtiers, in fact, don't have much of a sense of the overall situation, and they may not understand the reason why Cao Cao wants to take Wancheng so much, but they are very skilled in party struggle, but they understand that as long as Cao Cao is stopped from doing what he wants, it will not be wrong after all!

Zhang Xiu is now more wary of Cao Cao, and has shifted the center of gravity of the garrison to the city after Wancheng, closer to the hinterland of Nanyang County, with Wancheng as an outpost that relies on each other......

And now Cao Cao, out of his own interests, cannot completely lose the majesty of the imperial court, and can only prepare to crusade against Yuan Shu.

That's it...... Cao Cao missed the best opportunity to easily recover Wancheng and build a southern barrier!

"Dian Wei ...... It's really not dead? Break through......" Bai Tu muttered to himself as he looked at the belated news.

However, for Dian Wei, Bai Tu didn't pay too much attention, after all, Dian Wei is a typical warrior, and it is difficult to even say that he is a fierce general - I'm afraid I can't even understand the arrangement of camping!

The world of Johime seems to be high-level, but one thing that can never be denied is that individual bravery cannot compete with the army.

After Dian Wei broke through, he only killed hundreds of guards, but he was powerless to shake the army, even if it was Lu Bu, he didn't dare to let himself fall into the siege of the army.

The biggest feeling that this incident gave Bai Tu was that he had had enough of the transmission of this news, and after discussing the changes in Wancheng with his staff, he left Lu Su, the head of the Ministry of Civil Affairs, and Shi Chen Gong, the minister of officials......

That's right, it's the history of the minister, who was implicated in Pan Zhang's affairs before, and the officials and departments of the Chen Palace were made into long history, but no new department was arranged, and it was regarded as acting as a long history for the minister.

After Zhou Tai suppressed the bandits, the partial general who was crowned was also punished, and now he has become a lieutenant again.

However, both of them belong to their positions and have been deducted, and their powers have not changed, which can be regarded as a wake-up call to others - even Bai Tu's henchmen will be masturbated when they encounter this kind of thing, and they will be replaced by someone else...... After masturbating, just wait for idleness!

"How's the preparation of the Wind Catcher?" Bai Tu asked directly.

Catching the wind is the name of the intelligence agency that Bai Tu is planning to establish, mainly responsible for transmitting the information from all over the world as soon as possible, and Chen Gong hopes that the chasing wind guard can also make some contributions to the supervision of the officials.

However, Bai Tu specially told him that he must not snoop on his privacy, and he can only collect first-hand public opinion, and second, he only has the power to transmit news......

Bai Tu is not going to raise a Jinyi guard who makes everyone feel at risk, I believe that Chen Gong himself has a spectrum in his heart, and Bai Tu also told Chen Gong before, now he just asks the Ministry of Officials to recommend suitable candidates and build a shelf, and Chasing Wind Wei will not be a subordinate department of the Ministry of Officials in the future.

"A hundred people have been preliminarily screened, of which 30 are scouts drawn from the army, and the others are candidates recruited by the Naxian Hall, who are teaching encryption, decryption, common sense in spying on information, and domesticating pigeons...... It remains to be seen. Chen Gong said.

Bai Tu naturally taught Chen Gong several common secret communication methods a long time ago, and specially began to domesticate pigeons, but the latter could not be completed overnight.

The Chinese civilization circle appeared in the use of pigeons to transmit the means of communication, it was in the Sui and Tang dynasties that began, and this is not like an invention and creation, after knowing the principle can be made, the pigeon is domesticated from generation to generation, in order to achieve homing flight!

It is not that you can take advantage of this trait immediately after you catch it.

"The experimental transmission line between Jinling and Qu'a has been built, and the effect is amazing! The location of other signal towers has basically been finalized, and priority will be given to covering the south bank of the Yangtze River...... as well as the area of Anhui City and Huainan. Lu Su took the initiative to say.

Lu Su also felt very novel...... This "cousin" always has something new!

The so-called signal tower is naturally not a wireless signal tower, and the white map can't point out such a high technology.

Rather, it is a "signal tower" at the top of the tower that places a huge "Z" shaped swing arm that can be twisted and rotated, and through the winch in the tower, its rotation can be controlled.

The principle of its transmission, similar to the beacon, one by one, can watch each other's signal towers, can be transmitted by swinging the arm, and the amount of information is much higher than the beacon, through the pre-specified "swing arm secret language", can transmit complex information, with the pinyin in the "cut rhyme", can directly transmit the sentence.

During the Napilonic period in France, this method of communication was so popular that it was even used for public use, and later disappeared with the advent of the telegraph.

Now Baitu is laying signal towers in Jiangdong, and its biggest role is actually to use it for signal transmission in difficult terrain - after all, it is a visual transmission, which must be built on a high place, and it is limited in flat areas.

Generally, it is built on both sides of the river and between two mountains, which is undoubtedly the most obvious improvement in efficiency, as for the plain area...... You can still use the light horse to send the message.

Of course, such a conspicuous signal tower can only transmit messages within the control of Bai Tu, and it is impossible to build it on the territory of other princes.

Therefore, Bai Tu decided to lay it in the northeast of the Yangtze River first, that is, the south bank of the Yangtze River in Chaisang, Jinling, and Qu'a, and then invaded Huainan and established it step by step with the army!

Because of the existence of the castle princess, the task of transmitting and receiving messages in the tower can be completed by the soldiers of the castle building, which is not only more accurate, but also can improve the transmission speed between the castle queens.

Before, it would take at least an hour or two to send a message between Jinling and Qu'a, but now, ...... After a meal, you can talk to each other three or five times!

And this is still between Jinling and Qu'a, the road is originally very smooth, if it is replaced by Huiji, Yuzhang...... In areas with many mountains and forests and rugged roads, the efficiency of communication will be significantly improved.

Lu Su had some expectations, when Bai Totem came out to solve the Shanyue problem, how much would these signal towers hate those Shanyue who were hiding from east to west and making the officials and soldiers tired......