It didn't take long for Wei to get the formula of cement, not to mention that it had to be studied to understand how to fire, although there were many craftsmen involved in the research, but not many people understood it in a short time. Now these craftsmen who are familiar with firing cement have been sent by Cao Rui to Bingzhou to be responsible for the defense construction of Bingzhou.

Fancheng is a military fortress, the scale of the city is not small, if you want to rebuild it into a cement city wall, it is not a few days to do it, it will take more than two months soon. If there are fewer craftsmen who know how to fire cement, this time will be delayed even more.

In Sima Yi's view, now the Han is not able to use troops in Shuozhou, and the strength in Jingzhou is sufficient, and the defense of Wei in Nanyang is insufficient, so it is inevitable that the Han will attack Nanyang from Jingzhou, and it is very likely that the Han is already starting to act.

Therefore, Wei should now focus its defense on Nanyang.

It's a pity that because of Hua Xin's intervention, who didn't understand military affairs, Sima Yi's suggestion was only half successful. The reason why it was half was Cao Rui Cao Rui still sent some craftsmen to Fancheng.

But the march to fight, the military situation is like fire, the slightest difference of thousands of miles, now that the Han army is about to attack Fancheng, it may be too late to send the craftsmen used to the south, what is the use of sending a part?

Sima Zhao on the side said: "Father, since Your Majesty doesn't take your words to heart, why do you have to meddle in your affairs, when the time comes, if you lose Nanyang, Your Majesty will naturally come to beg you!" ”

"Do you have a brain?" When Sima Yi heard this, he was even more angry, poked his youngest son's forehead with his fingertips, and scolded: "If Nanyang is lost, the soldiers can be directed at Luoyang and threaten the national capital, and then my Great Wei will be destroyed, do you want Your Majesty to let me deal with the hundreds of thousands of lions in Shu alone?" Who do you think I am? Can you do anything? ”

was scolded by Sima Yi like this, and Sima Zhao also lowered his head and said nothing.

When Sima Shi saw Sima Zhao being reprimanded, he diverted the topic: "Father, now that Your Majesty doesn't listen to you, what is the matter?" ”

When Sima Yi heard this, he sat down in his seat again, groaned, and began to write to Cao Rui again.

The original suggestion had been rejected by Cao Rui, and Sima Yi could only think of a new way.

This time, he directly said that the scouts had detected signs of useful troops in Wuguan, and concluded that Liu Chan would soon attack Nanyang from Jingzhou. Then he asked Cao Rui to let him go to Nanyang to guard the town and let the others temporarily guard Tongguan.

Cao Rui soon received another letter, but he did not agree to Sima Yi's request, only said that the important town of Tongguan could not be without Sima Yi, of course, Cao Rui did not completely ignore Sima Yi's words, and at the same time he also wrote to Hu Zhen, who was guarding Nanyang, to ask him to be careful.

Sima Yi also received a reply soon, and Cao Rui's refusal was also expected by Sima Yi.

Seeing that his two suggestions failed, Sima Yi had a heart, and instead of writing to Cao Rui, he wrote directly to Hu Zhen, who was guarding Nanyang.

Hu Zhen was an important town of Wei, and when he was young, he was as famous as Jiang Ji, not only for his honest officials, but also good at using soldiers, and he had defeated Zhu Ran in history. This Zhu Ran is the general of Jiangdong, and his ability to use troops is only under the four governors of Jiangdong.

Although a victory or defeat cannot show how high Hu Zhen's military talent is, it is definitely not bad to be able to defeat Zhu Ran.

In mid-April, Hu Zhen received a letter from Sima Yi.

At this moment, Guan Ping, the governor of Jingzhou, was already reorganizing his army and stationing troops in Xiangyang, and his intention to attack Nanyang was already obvious.

Not only that, but the craftsmen sent by Cao Rui from Bingzhou also arrived in Nanyang.

Nanyang's governing place, Wancheng.

In the main hall, Hu Zhen took the letter sent by Sima Yi and was patiently watching.

Nanyang's general, Zhou Tai, walked into the hall and said to Hu Zhen: "Governor Qiqi, the craftsmen from the state have arrived in Wancheng, do you want to send them to Fancheng?" ”

Hu Zhiyan put down the letter in his hand, thought about it and said, "No need! ”

Zhou Tai was stunned when he heard this: "Huh? Didn't Your Majesty send a message last time, saying that you want to use these craftsmen to burn cement and rebuild Fancheng into a cement city wall, according to the scout's report, Jingzhou Guanping Tun soldiers Xiangyang, but there is a soldier's intention......"

Hu Zhen said in a deep voice: "Is it too late?" ”

"This ......" Zhou Tai heard this, and was silent for a moment, now Jingzhou is already preparing to send troops, and will send troops to attack Fancheng in a month at the shortest, and if you want to rebuild Fancheng into a cement city wall within a month, that bit of craftsmanship is obviously not enough.

Hu Zhen shook his head and said: "Sima Zhongda is right, then after Liu Chan returns to Chang'an, he will prepare to attack my Nanyang, and it is too late to rebuild Fancheng." ”

"What then?" Zhou Tai frowned and said: "I only have a total of fifty or sixty thousand soldiers and horses in Nanyang, and the Shu army has 100,000 soldiers in Jingzhou.

What's more, Shu can also send troops from Wuguan to attack Fancheng. Although Fancheng is tall, it is not a bluestone city wall after all, so I am afraid that it will not be able to stop the return cannon. ”

Hu Zhen looked at the letter sent by Sima Yi and said, "You can follow the law of Emperor Taizu to guard Chang'an." ”

Zhou Tai groaned: "Did the governor say that he would build a mountain outside the city to resist the return of the cannon?" ”

"Hmm!" Hu Zhen nodded and said, "If the earth mountain is built, the return cannon of the Shu army will not be of much use." As for the craftsmen sent by His Majesty, they stayed in Wancheng and first rebuilt Wancheng into a cement city wall.

At that time, even if Fancheng is lost, Wancheng will be enough to protect itself, and I am not at ease with the rest of the generals, you personally lead 20,000 soldiers and horses to Fancheng to garrison. ”

"No!" Zhou Tai heard the words and surrendered his hand.

Sima Yi's suggestion to Hu Zhen was to let Hu Zhen resist the return cannon in Fancheng with the method of earth and mountain, and then leave the craftsmen in Wancheng, and first transform Wancheng into a cement city wall. In this way, even if Fancheng is lost, Wancheng can ensure that nothing goes wrong.

This is a way to abandon the car to protect the handsome, if you want to keep Fancheng if you insist on going your own way, not only Fancheng will not be able to keep it, but Wancheng may also not be able to keep it.

And on the other side, Guanzhong.

Last month, Liu Chan set a strategy to attack Nanyang, and ordered Liangzhou Pang De to lead 10,000 soldiers and horses to Guanzhong.

At this moment, Pang De had already led his troops to Chang'an.

After the cavalry arrived, Liu Chan could officially send troops to attack Nanyang.

The Imperial City of Chang'an, in the main hall of Weiyang Palace.

"Wechen Pound greets Your Majesty!" On the day he arrived in Chang'an, Pound settled his soldiers and horses, and participated in the court meeting the next day.

"Aiqing, please get up!" Liu Chan helped Pang De up with both hands, and looked at Pang De of His Royal Highness, who is now over sixty years old, with gray hair, but his back is very straight, like a mountain peak, revealing his spirit up and down.

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