Cheng Yanjin did not leave any military books or anything like that in history for future generations to admire, but it does not mean that he knows nothing about the art of war, let alone that he does not know how to command battles.

Under Li Shimin, it is not so easy to get the title of Guogong.

"Is it difficult to make this sand table?"

Cheng Yanjin's whole person leaned over the sand table, looking at the roads, houses, and hills inside, his face constantly changing.

"Guogong, although I didn't make this sand table, as far as I know, it still takes some effort to make an accurate sand table, and not everyone can make it. For example, the location of the roads on the sand table, the height of the hill, the area of the artificial lake, etc., to accurately figure out these, at least to read and hyphenate to do; To put it more bluntly, at present, some students of Guanshishan Academy will make this sand table.

Of course, if it's just a simple model, it's easy. Find a few craftsmen and make a general appearance, which looks similar to the sand table in front of you, but the accuracy of the things inside is not like that at all. ”

Although Wang Fugui didn't know why Cheng Yanjin was so interested in this sand table, he still seriously told the information he knew.

"Aye, this sand table looks very beautiful, but it's nothing special, right? When a businessman buys a house, he won't decide to buy a house in Jinbi Garden just because of how beautiful your sand table is. ”

Cheng Chuliang hasn't reacted to the significance of this sand table.

"Hey, if I had led my soldiers to conquer Song Jingang, Dou Jiande, and Wang Shichong, I would have had a sand table map of the terrain around the battlefield, and I wouldn't have sacrificed so many warriors. Chu Liang, you are now studying in the cavalry department of the Tang Royal Military Academy, think about it, if Xue Yantuo's gang will make trouble on the grassland again in the future, and the imperial court will let you lead the troops to fight, what is the most headache for you? ”

Although his son is not so competitive, Cheng Yanjin wants to take this opportunity to mention it.

"In the vast grassland, how to find the enemy army is the biggest problem. Our soldiers of the Tang Dynasty, whether it is equipment or courage, will not be worse than the Hu people, but the difference is that the terrain is not as familiar as others, and they are often exhausted on the grassland, but there is no way to come up with any decent results. Those Hu people, taking advantage of the geographical advantage to sneak attack us, if they succeed, they will expand the results of the battle, and if they fail, they will quickly flee, and even if we win the battle, it will be difficult to annihilate the opponent. ”

Cheng Chuliang thought about it and gave his own reply.

His answer is the standard answer for most of the cadets in the cavalry section of the Military Academy.

Although because of the appearance of hot air balloons, the reconnaissance difficulty of Datang's scouts is easier than before, but it is still difficult to accurately find the enemy and find a suitable ambush location.

"You're right, how to find the Hu people is the biggest difficulty. If there is a clear sand table map of the steppe, then it is easier to judge where they will gather, and in combination with the use of the hot air balloon battalion, it will be easier to lock on to the enemy forces; In addition, once you want to enter the battle between the two armies, how to arrange the troops, how to encircle and chase and intercept, in previous years, this was a very test of luck and the strength of the generals, but if there is a sand table map around the battlefield, even a person who does not know much about the art of war can easily judge how to attack is the most suitable. ”

Cheng Yanjin suddenly felt that today's trip to the sales office was really worth it.

This sand table alone, as long as it is introduced to the Tang Royal Military Academy, let the students of the staff department study it well, and then start to draw the sand table map of the major state capitals of the Tang Dynasty, and when there is a war, it is definitely a great weapon.

"Guogong, this is just a miniature picture of our Jinbi Garden, is it so useful?"

Wang Fugui on the side looked at Cheng Yanjin dumbfounded.

In his opinion, this sand table is the existence of chicken ribs, and Jinbi Garden has not become popular because of it.

Of course, it did not affect sales because of the sand table.

"What do you know as a businessman! Chu Liang, you go to the Chu Palace, say hello to Kuan'er, and ask him to take that Liu Yuan to the Military Academy. Also, the sand table in front of me was all moved to the Military Academy. Remember, don't break it, maybe this sand table will still be the treasure of our military academy in the future. ”

Cheng Yanjin doesn't care if Wang Fugui agrees or not, let's move the sand table in front of him first.

The actual person in charge of the Military Academy is Qin Qiong, as long as he sees the sand table in front of him, he can naturally understand its benefits; Therefore, Cheng Yanjin is not worried at all that no one will support his decision.

"Guogong, this ...... It's not appropriate, right? Our Golden Garden has just started to sell, and this sand table can give customers a clear idea of the location of the house they have bought. You just moved it away like this, and I can't give the prince an errand. ”

Wang Fugui saw that Cheng Biting Jin was going to let people tear down the big sand table in the center of the sales office without saying a word, and his face turned green.

If it weren't for Cheng Yanjin being Li Kuan's father-in-law, he would probably be scolding.

"Kuan'er, I will naturally say! You can arrange for someone to help you relocate immediately! ”

Cheng Yanjin didn't pay attention to Wang Fugui's protest at all, but asked him to help relocate.

……

"Boss, have you heard? Li Kuan is such a loser, Cheng Yanjin can't stand it anymore, and personally takes his son to the sales office to dismantle the stage! ”

In the Yang Mansion, Yang Dong came to Yang Benman's side with a gossip face.

During this time, Yang Benman asked Yang Dong to arrange personnel to keep an eye on the movements of the sales office in Workshop City at any time, so he naturally knew about Cheng Biting Jin's going to the sales office today.

Not long after Cheng Yanjin entered the sales office, he forced someone to move the sand table from the inside.

But anyone who has been to the sales office has a little impression of that sand table.

So I don't know whose mouth it started, the rumor that Cheng Yanjin went to the sales office to dismantle the table spread.

That night, everyone in Chang'an City who should know knew about this rumor.

"I think most of this is a rumor. But if the workshop city is really a bottomless pit, it is also possible for Lu Guogong to intervene. But the situation hasn't reached that level yet. ”

Yang Benman was confused by the current news.

"Who knows. I heard that Lu Guogong, even if he is in the court, will fight with people if he disagrees, and his temperament is very hot, and it is possible that he will go directly to the sales office to dismantle the stage. ”

Yang Dong's understanding of Cheng Biting Jin is obviously still at a very superficial level.

However, this is really the impression that Cheng Yanjin hopes to leave on everyone.