Indeed, marriage is an effective means of bringing the two countries closer together, especially in the north, where ethnic minorities seem to be more comfortable with this. In the final analysis, this is just a marriage as a cover, and behind the scenes is the tacit exchange of interests between the two parties, when the interests of one party are seriously harmed, or have disdainful of such a balance, it is natural that the relationship is broken.

In the early Han Dynasty, the Xiongnu married from generation to generation, but the Xiongnu did not give up harassing the border of the Han Dynasty, because obviously the Han Dynasty needed to exchange peace from the Xiongnu, but the Xiongnu could not get the food and slaves they wanted, so they did not act a lot behind their backs. Until Liu Che's time, the powerful Han Dynasty no longer needed to keep peace with the Xiongnu, so they didn't mind breaking the original state of marriage and directly putting the Xiongnu to death.

Therefore, the so-called political marriage is just a layer of skin on the surface, which can only be used as a cover for the transaction behind the scenes, but it is just the icing on the cake. After all, the people who have reached this position, whether it is Yu Wenxian, Yang Jian, or Wei Chi Hui of Luoyang, their minds have become more and more hard and cold.

In the eyes of a hero, in order to be able to achieve his set goal, it doesn't matter what kind of means he takes, even if it is his beloved wife and concubine or his daughter who is regarded as the pearl of his palm, as long as it is in his own interests, he can give it to others.

Even Li Xinchen is unlikely to disrupt the layout and arrangement of his entire strategy because of his children's personal affairs. Just like Wei Chi Hui, although he is also a relative of the Han Dynasty, Li Xinchen will definitely not be merciful when he attacks Wei Chi's family.

Once there is a problem with the exchange of interests between Li Xinchen and Yang Jian, then Li Xinchen will not show mercy to Yang Jian's daughter as his wife, and Yang Jian is the same. In history, Yang Jian once directly killed Yu Wenyan, who was only seven or eight years old, and Yu Wenxian was Yang Lihua's adopted son and Yang Jian's grandson, even if Yang Jian thought that he was ashamed of Yang Lihua, but this did not prevent him from poisoning Yuwen Yan.

"The icing on the cake can be talked about if you can, and you don't need to talk about it if it's not appropriate." Li Xinchen said lightly, "But since it's an eight-hundred-mile rush, let's go and ask Zaifu for their opinions." ”

"Yes!" Yang Su responded.

And Li Xinchen looked around a little strangely: "By the way, why hasn't the Taiwei returned yet?" ”

This Taiwei Mansion is Xiao Maha's Taiwei Mansion, but Li Xinchen has been here for so long that he hasn't seen Xiao Maha, who went out to inspect the military camp, come back. Approaching the end of the year, all matters need to be handled with the nod of Xiao Maha, the captain, even if the morale and military spirit around Jiankang Mansion are very important, it stands to reason that it should not be delayed for such a long time?

Yang Su hurriedly wanted to send someone to urge, but saw Xiao Maha striding in:

"Your Majesty is coming to the Taiwei Mansion, and the minister has not been able to accompany him, and the minister is guilty!"

Li Xinchen smiled and helped him, but it was obvious that the young emperor had a dissatisfied look on his face, if Xiao Maha couldn't give Li Xinchen a reasonable explanation, then he would definitely be punished.

"Your Majesty, the newly developed weapon of the Ministry of Industry has been sent to the school for demonstration, and the minister was quite shocked after seeing it, please move to the Ministry of Industry, and Wu Ping, the secretary of the Ministry of Industry, please go and watch it." Xiao Maha then said in a deep voice.

Li Xinchen was slightly stunned, but he immediately knew what should be developed by the Ministry of Industry.

Gunpowder, which is said to have been inadvertently invented by the Tang people during their alchemy, is like a karmic fire in hell, and has been burning human society for nearly a thousand years since then. No one can deny that gunpowder has an irreplaceable role in promoting human history, and it is also gunpowder that breeds guns and cannons, and also makes human society move from feudalism and closure step by step to modernity.

Li Xinchen asked the Ministry of Industry to start studying gunpowder and corresponding firearms, firearms are actually very easy, and even the Song Dynasty's assault guns are simply simple firearms made of bamboo pipes as gun bodies, and later generations of pine cannons and other earthen firearms have the same magic, and the real difficulty is in the configuration of gunpowder.

Explosions, deaths, this in itself is something that people don't want to touch, but once these things are applied to the opponent, it means victory.

However, what Li Xinchen knows is only the approximate components of several gunpowders in later generations, the main components of gunpowder are saltpeter, sulfur and charcoal, these three things are actually more common raw materials, but how to match is related to the power of gunpowder, if the ratio is wrong, then it is more likely to see a huge fireworks, there is no explosion effect at all.

It is precisely because no one has explored the ratio of gunpowder, so gunpowder has not been officially used for military purposes for a long time in ancient times, after all, no one would want to hold such a weapon with uncertain power in their hands, not to mention that the ancients inadvertently made gunpowder in the process of alchemy, but they have only seen small-scale explosions of gunpowder, and there is still a lack of understanding of the true power of gunpowder, which is why it was not until the Southern Song Dynasty that gunpowder began to appear on the Chinese military stage. And even in the Ming and Qing dynasties, it was overtaken by the West in terms of firearms.

Therefore, how to make the right proportion of gunpowder is a big challenge in itself. But fortunately, because of Li Xinchen's full support, the development of the Ministry of Industry is still smooth, not to mention that now the power of the thunderbolt and the bed crossbow has been developed by the craftsmen of the Ministry of Industry to the greatest extent possible, and there is almost no room for further rise.

Therefore, the Ministry of Industry also has enough manpower to explore and advance this thing that Li Xinchen Ziyun saw in an alchemy book that has been lost. Of course, Wu Ping and the others in charge of presiding over this matter were still skeptical of the military use proposed by Li Xinchen, and they felt that Li Xinchen was probably trying to do alchemy.

After all, every generation of emperors has a dream, that is, immortality, even the greatest emperors, such as Qin Shi Huang, Emperor Wu of the Han Dynasty and later Tang Taizong and others, are irrepressibly indulged in the search for immortals.

Therefore, it is reasonable for Li Xinchen to have such a mentality, so the Ministry of Industry did not take this matter to heart at first, but with the deepening of research, the craftsmen were surprised to find that these things would not only produce smoke after ignition, but even explode, and only then did they understand that what Li Xinchen said seemed to be really reasonable.

If you can control the proportion of raw materials put in and then control the scope of the explosion, it is really a new big killer that is not inferior to the power of trebuchet.

Now, it is clear that the Ministry of Industry has succeeded.

It's no wonder that Xiao Maha's face has a joy that is difficult to hide.

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