After the emperor's words fell, the corners of Shu An's mouth curled slightly, and he didn't seem to have any surprise about this question.

Or he was waiting for Li Shimin to ask this question.

For Shu An, gunpowder had already been used once before, but Xue Rengui did not explore.

As for Li Shimin, it was different, this time he still used gunpowder in front of this emperor.

If Li Shimin doesn't ask, there is a problem, but Shu An also doesn't care.

Because the matter of gunpowder always has to be known, and it is not a bad thing to hand it over to this emperor.

Of course, gunpowder still has to be used properly, after all, in some places, gunpowder is still very useful.

In fact, Shu An thought that Li Shimin would ask earlier, but he didn't expect it to drag on until now.

It can be said that Li Shimin is very calm, but even if he is calm, he still can't escape the charm of gunpowder.

"This thing is called gunpowder, and the people of the world have seen it as far as the power of the world."

"The people of the world can still see some Taoist priests in the past, and gunpowder is my idea."

"But it's these people who make it, and if you don't have these people to cooperate, then it's not so easy."

......

Since he didn't intend to hide it, naturally Shu An's voice sounded faintly.

Anyway, for him, there is no difference between talking early and going to bed late.

Similarly, Shu An also said about the advantages and disadvantages of gunpowder, of course, Shu An still had reservations.

That's the bronze cannon, after all, no one knows what the cannon is except him.

However, even if it was just gunpowder, Li Shimin's eyes flickered, revealing a lot of light.

Despite all the limitations, the power of gunpowder made the emperor very hot.

The eyes are hot, but if you want to get it from the father, this emperor also has some hesitation on his face.

Obviously, it is difficult to open this mouth, which can't help but make Shu An show his eyes.

How can there be such a good thing in the world, I don't want to speak, but I still want to take things.

Of course, if this emperor is placed elsewhere, others will definitely send it to the door.

But unfortunately, it was Shu An who met him, if this emperor didn't speak, then he wanted to be silent.

"I don't know if my father can teach me how to make gunpowder."

Sure enough, it was Li Shimin who was defeated in the end, and this emperor finally had some embarrassment.

"If you want to learn, it's not impossible, but I also hope that the people of the world will give some convenience in some things."

The smile on Shu An's face became even thicker, maybe tease this emperor.

It's one of his few little funs, but as the most noble person of this era.

There are really not many places to ask for help, but it's a pity that this special case was broken when he came here.

"Even if there is no gunpowder, I will agree to what my father asks."

Li Shimin's face showed a hint of joy and said loudly, this condition is nothing in his opinion.

Getting gunpowder was easier than he had imagined, but of course it was thanks to the fact that Father did not embarrass him.

"After returning to Chang'an, Shimin can send someone to contact the Crazy Tiger."

Shu An shook his head slightly and said without saying anything.

and Li Shimin don't like to owe favors to others, and he also doesn't want to owe favors to this emperor.

So it's better to make it clear now, and if the cannon is made next.

Li Shimin also needs to cooperate, so it's better to sell a favor.

"As the Father said."

Naturally, Li Shimin would not object to Shu An's words, although he wanted gunpowder, he was not in a hurry.

"The people of the world have received news about the grasslands."

At this moment, Shu An suddenly remembered a question and couldn't help asking.

It is very important to know the decisive battle of the grassland, which is related to the future direction of Datang.

Compared with Liaodong, the importance is far more than that, so Shu An naturally pays attention.

And his disciple Xue Rengui is also on the grassland.

"The situation in the grasslands, I haven't received the final results yet."

"However, in terms of the situation, Datang still has an absolute advantage."

"Of course, Xue Yantuo of the grassland is not considered a vegetarian, and many soldiers have also fallen into it."

......

Li Shimin's words began slowly, and he told Yafu some things he knew.

This emperor was also concerned about the grassland, and he did not forget the purpose before he came to Liaodong.

It is to prevent Goguryeo and Xue Yantuo from uniting, so they will naturally not relax their attention to the grassland.

However, because of the long distance, the messaging is not so easy. Therefore, Li Shimin does not know the situation in the grassland now.

Some of the news that came before didn't make this emperor worry much.

"Hmm!"

Shu An nodded and said, he didn't have much thought about this matter.

Because everything went according to plan, except for the accident in Liaodong, and now the accident has also been made up.

Just looking at the play of the Tang Army in the grassland, Shu An didn't bother much after thinking of this.

"I don't know what the people want to do with the grassland if they capture the grassland?"

However, Shu An didn't plan to let go of Li Shimin, and continued to ask out loud.

can defeat for a while, but it doesn't mean that he can defeat a lifetime, Shu An from the next generation knows better than anyone.

"What to do with the grasslands?"

And Li Shimin, who heard his father's words, couldn't help but be stunned, as if he didn't expect to ask this question.

"Isn't it to recover Xue Yantuo, similar to the Turks?"

Without thinking, Li Shimin replied directly, in his mind, it would be enough to subdue Xue Yantuo.

Shu An on the side couldn't help but show a black line on his face, sure enough, he knew such a result before.

"Do the people of the world think that Xue Yantuo will be convinced under this?"

"Maybe there won't be a storm in a few decades, but it's hard to guarantee that there won't be anything else in a hundred years."

Shu An's voice had some anger in it, and there seemed to be a hint of anger.

Even Li Shimin was a little strange, and he was not dissatisfied with this trace of anger.

Because in his eyes, this father has always been a calm person.

On the contrary, he is very persistent on this one issue, but Li Shimin is not a pedantic person.

In the face of his father's words, he also fell into thought, even he had to admit it.

Yafu has a point, you must know that in the Qin and Han dynasties, the grassland was a problem, and it was solved many times.

However, to this day, the grassland is still a problem and has not been solved.

It's like a cycle, and it's hard to guarantee that after a few years, the grasslands won't become a threat again.

"I don't know what my father has to say."

Fortunately, in the face of his mistakes, Li Shimin accepted them with an open mind, and couldn't help but ask for advice with a hint of modesty.