Bai Tu's proposal was again rejected, and ...... This time it was a veto from the Privy Council.

Even Bai Tu's beloved father-in-law, Lu Bu, did not agree with Bai Tu's idea......

"Hard drive, even for my father, I can't break through the city wall of the county with the blessing of the people in one blow." Lu Bu's reason is simple, the city wall is ...... It's all useful to me, how can it not be useful?

Lu Bu then also persuaded: "Even if our Da Chu is strong now, it is difficult to guarantee that no one jumps over the wall in a hurry, besides, ...... Even if we can keep the enemy out of the country, we still have to plan for future generations. ”

Sure enough, even if Bai Tu doesn't demolish the old city wall now, there are still people who are thinking about renovating it.

The inner city wall is brought by the city Ji, mainly to isolate the soldiers made by Ji, and the outer city wall is ...... You still have to build it yourself.

"Father, I don't mean to keep the enemy out of the country, but the role of the city wall...... Far more expensive than it was to build, when the father-in-law was in the annexation of the state, he often fought with the Xiongnu and Zhuqiang, and he should understand the principle of field warfare instead of siege, and the heavy artillery of the Ministry of Engineering is also about to be put into use, and then the power is better than that of catapults, ordinary city walls are like pounding melons, and the heavier ones are difficult to resist five or six times, and there is no need to take stones to make bullets like catapults......" Bai Tu explained.

"Heavy artillery of the Ministry of Engineering? I've seen it, but only the heaviest ones can do what the hard drive says, right? Ordinary field artillery, the projectile power for the city wall, is not much stronger than the trebuchet, but the advantage of solid iron bullets, so the killing of soldiers on flat ground is greater, and now those so-called field artillery can not go up the mountain or water at all, and the restrictions are very great.

As for heavy artillery...... If you can move the heavy artillery to the city, you deserve to lose. Lu Bu shook his head disdainfully, indicating that those "guys", in addition to sound and convenience, were not much better than catapults.

When Bai Tu heard this, he was dumbfounded for a while.

It's not that Lu Bu said wrong, but ...... Bai Tu didn't expect that his father-in-law would actually study behind his back?

Obviously, those guns have just been developed by the Ministry of Industry, and they are still in the final commissioning stage, and mass production and distribution are still in the plan!

"Hard drive, you don't think that before becoming a father, you were in Jinling and had nothing to do all day, right?" Lu Bu smiled slightly.

"Of course not! I have long heard that my father-in-law was resourceful and diligent in his work, and he passed through the house three times without entering ......"

Bai Tu lied, he really always thought that his father-in-law would go home to accompany his aunt after ordering in Jiangshan Pavilion in the morning.

It turned out that Lu Bu had really been interested in the new ordnance......

As a privy envoy, he also has the highest right to know about the research of the Ministry of Industry in terms of ordnance, and if Lu Bu quietly studied with Bai Tu behind his back, it would not be surprising to know this!

Lu Bu listened to Bai Tu's compliment and was very useful, but still said: "The new artillery is indeed more convenient than the catapult, unlike the catapult that cannot move long distances at all and can only be manufactured on the spot, and the iron bullet is more convenient to transport, and does not have to rely on local materials, but ...... It is still a long way from completely changing the mode of warfare. ”

Bai Tu also had to admit that in terms of tactical alignment, his father-in-law did have a unique vision and saw the problems of artillery at a glance.

Did the walls work against artillery?

In fact, during World War II, when China was invaded by the island countries, the city wall also played a certain role - the Chinese officers and soldiers were subject to the performance of artillery, and most of the flowering cannons could only loosen the bricks, but the armor-piercing cannons of the island countries could easily destroy the city walls...... Therefore, in the middle and late stages, there was a Chinese official army as the invaded party, and they could only demolish the ancient city wall in one place, so as not to be embarrassed by the enemy in the future!

As for the current "artillery" of the Ministry of Industry, there is no need to separate flower shells and armor-piercing shells, and there are only the most ordinary solid bullets.

The main way to deal damage is to roll and bounce after the iron bullet or lead bullet is fired.

Shoot out, you can explode the kind of thing, don't expect it for a while.

The hollow bullet that needs to be filled with gunpowder, or "grenade", and the howitzer not only has higher requirements for the fuze process, but also has a limit on the length of the gun chamber......

After all, this has touched the knowledge blind spot of some "hard disks", which needs to be solved by the Ministry of Industry itself.

In a way, it's not as reliable as another hand-tossed project, which has been suspended at halftime for safety reasons.

Even if the experiments are successful now, they need to be mass-produced...... It is also necessary to solve the problem of the energy source of the "real gas engine", otherwise the generals in the army will be used as tools to supply energy to the press...... I'm afraid that the output is worrying!

Pang Tong already had some eyebrows on his side, and he was discussing with Hua Tuo.

With the firepower and technology of the current artillery of the Ministry of Engineering, after three or four "bounces" of solid ejection, it can still maintain sufficient lethality against people, and the theoretical killing distance is more than 1,000 steps.

Compared with the Chu cannon, the white cannon is still very tempting, but ...... is still a "witch", in addition to being loud on the battlefield, it can basically be regarded as an enhanced version of the catapult!

That's why Lu Bucai said that artillery can't change the mode of war yet!

Bai Tu is not easy to refute this, after all, what Lu Bu said is indeed reasonable, as for what Bai Tu thinks, the "future" artillery development, it cannot be explained to others.

However, Lu Bu's words also gave Bai Tu a new direction, that is...... War mode.

Bai Tu suddenly reacted, even his stepfather, he is not too adaptable to the change of tactical thinking now, this is not only a problem of the city wall......

Using old tactics to use new equipment is undoubtedly half the effort.

And from this point of view, if Bai Tu can convince Lu Bu to change his tactical thinking as a whole, and then talk about giving up the city wall, it will be logical!

"Father-in-law, how about we deduce the sand table?" Bai Tu said confidently.

"Oh? Hard drive at this time want to teach the Father how to fight? Hahaha, okay, my father-in-law has been with you twice. Lu Bu said with a smile.

The sand table deduction is not high-tech, that is, in the sand table, the terrain is simulated with sand and gravel, and the chess pieces are used to simulate the confrontation.

An hour later......

"No, no, no, it can't be counted like that, it's useless if your cannon can be shelled or rolled...... Three hundred men for the Father are enough to break through your battle formation, and you have already lost! Lu Bu said and directly pushed down all the pawns and chess pieces on the sand table.

White Picture: ......

The third time, it was said that 5,000 against 5,000, 30 Chu cannons per person, and 2,000 divine arm bows.

However, every time Bai Tu took a little sweetness, Lu Bu said that he could break the formation for 300 and came directly to pull out his handsome flag......

However, Bai Tu couldn't say anything.

After all, even if this is a real battlefield, Lu Bu can rush like this!