Even if Li Xuan is a liberal arts student, he also knows that three acids and two alkalis are the foundation of modern and even modern chemical industry, and most chemical products are inseparable from these five things.

And sulfuric acid, and the Royal Institute of Technology came up with artificial production methods a few years earlier, but they are all used in the soil method, the output is small, the cost is large, and it is difficult to large-scale industrial production.

This is far from enough for the Tang Dynasty, which has now started industrialization.

So the Royal Institute of Technology has been looking for a way to produce sulphuric acid cheaply and in large quantities, and now it's finally off to a good start.

Although the production of sulfuric acid in glassware is still a little small, it is still much better than before.

For this breakthrough in basic materials, Li Xuan has always been very supportive!

Because of the breakthrough of various materials, the later technologies can break through and invent and manufacture various finished products.

Therefore, Li Xuan waved his pen and directly instructed behind the excerpt that it is necessary to pay attention to the production process of new sulfuric acid and promote it quickly, and at the same time give the R&D team rich rewards.

After reading the day's excerpts, Li Xuan just left the palace, and then went to the military camp of the Guards to inspect!

However, the troops inspected were not the Guards, the Guards followed him every day, and Li Xuan was very familiar with the situation of the Guards, and he didn't dare to say every officer, but basically the officers above the battalion level, Li Xuan casually said their resumes.

Because every officer at the battalion commander level was personally promoted by him, and most of them were students from the young military camp and had entered the Imperial Academy.

Today, he came out to inspect a cavalry unit that had just arrived in Jiujiang, and it was a relatively special cavalry unit!

This is a cuirassier cavalry unit and the first heavy cavalry of the Tang Dynasty!

This gun does not mean a musket, but a hollow lance for cavalry!

Although the cavalry generals in the Tang Dynasty were all fond of light cavalry equipped with cavalry swords, they were reluctant to use muskets, even flintlock muskets, and at the same time they were unwilling to equip armor and turn themselves into heavy cavalrymen.

But Li Xuan knows very well that in this era, a heavily armored lancer still has an irreplaceable role!

In the past, they didn't do it, because the Tang Dynasty did not have war horses that could be used as heavy cavalry, and in the early days, there were not even enough Mongolian horses, and the short Mongolian horses were not suitable for heavy cavalry at all.

So the heavily armored lancers in Li Xuan's plan have been dragging all the time!

Until the first half of this year!

In the first half of this year, the Northern Expedition of the Tang Dynasty was successful, and at the same time, the Fourth Army entered Shaanxi, made contact with the nomads in the Western Regions, Wara and other regions, and began to quickly introduce horses from this area through mutual markets and direct spending heavy money to buy.

At the same time, after the success of the Northern Expedition, although the early Tang Dynasty and the Tatars were still in a state of hostility, not every Tatar tribe was hostile to the Tang Dynasty, and some of the Tatar tribes near the border towns of the Tang Dynasty would also secretly trade horses with the Tang Dynasty.

Not for anything else, just because the Tang Dynasty gave money to be refreshing!

Due to the abundant financial resources of the Tang Dynasty, and also willing to pay the price, so the purchase of horses is very smooth, according to the Shaanxi governor's report on the excerpt, only in the month of October, in the north, northwest and other regions of Shaanxi and foreign trade in the horse market, through a variety of trade methods to buy more than 3,000 horses, and this horse trade has not stopped.

Most of the Tang Dynasty paid for this was tea, silk, cloth, salt and other materials, and rarely gave cash in cash, because it was useless for the nomads to give gold and silver, and they needed tea, salt, ironware, silk, cloth and other living materials.

And these materials are not a matter for the Tang Dynasty, and the Tang Dynasty is more willing to exchange these living consumables for strategic resources such as horses, and even pay even a higher price than the market price for this.

And the vast majority of the horses purchased in these places were handed over to the military!

The military will use most of these horses directly as military horses, while a small number of stallions and mares that have not been castrated will be bred as stallions in the Shaanxi region.

Most of the horses introduced were still Mongolian horses, which could basically only be used by light cavalry or as service horses!

However, it was not only the nomadic tribes of the northern steppes such as Warat and Tatar who traded horses with the Tang Dynasty, but also the countries of the Western Regions, and the horses imported from these regions were different.

Because although the horses introduced from this area have different breeds and different names, these horses, which are called Central Asian horses by the officials of the Cabinet and War Department, are generally tall and explosive!

Its shoulder height generally reaches more than one meter four or five, and a small number can even reach one meter five, and the explosive power is relatively strong, but the endurance is worse than that of Mongolian horses, and then the requirements for breeding are also relatively high.

But poor endurance and high feeding requirements are not a problem for the Tang Dynasty!

Isn't it just that the food is more expensive, our Datang Army has money and can afford to raise it, so it's a big deal to feed eggs, soybeans and other mixed concentrates every day.

Isn't it just that the endurance is poor, it's okay, our Datang cavalry has never played the tactic of cavalry running thousands of miles, the cavalry wants to ride horses, only before the battle, if anyone dares to ride a horse before this, it will be dealt with by military law in minutes.

The Tang cavalry, regardless of whether it is light cavalry or heavy cavalry, actually plays the same routine, that is, they only charge on the battlefield, and their daily marches rely on their feet.

So after getting these Central Asian horses, the horse officials of Datang are quite enthusiastic!

After some of them were castrated, they could not be used as stallions, and they were not wanted, so they were directly thrown to the army, and they themselves left nearly dozens of stallions without castration, and some mares began to be bred in the horse farm.

And they are not simply continuing to breed these Central Asian horses, some of them continue to breed, and the other part of them still select some excellent Mongolian horses for crossbreeding!

They look forward to one day being able to breed an ideal war horse: tall and strong gravity, strong short-distance explosiveness, good long-distance endurance, simple breeding, just give some grass to eat and feed without looking, adapt to the climate and geographical environment in a large range, the northern ice field, the southern jungle, the plain area, and the plateau area can go!

In this way, in the future, the Tang cavalry will be able to get an excellent war horse to fight all over the world!

Well, even Li Xuan himself thinks that they are daydreaming, let alone in this era, even in the modern era of later generations, there are no such all-round and excellent horses, at most they highlight a few of them!

However, as a horse official, how can you not have some dreams?

So even though they knew that it would be very difficult, they still threw themselves into it, and began to breed horses, and walked on two feet, on one side to breed the original breeds, including Mongolian horses and Central Asian horses, and on the other side to cultivate hybrid breeds.

In the process of horse trade with the Western Regions, the army obtained about 500 castrated Central Asian horses, all of which were more than 1.45 meters tall at the shoulders.

In the Tang Army, a group of Mongolian Mali, which is generally only one meter three in height at the shoulder, looks extremely tall!

For the use of this batch of Central Asian horses, the army was originally going to distribute them to middle and senior generals at all levels as mounts, after all, the tall and mighty war horses, that officer likes them!

But after Li Xuan knew about this, he kept the edict that all these horses were detained, and then he specially ordered the transfer of personnel to form the first lancer of the Tang Army!

In this way, the first lancer regiment of the Tang Dynasty was officially established!

The commander of the regiment is Song Zhilin, the proud disciple of the famous cavalry general Lieutenant General Lu Yu, and this name is similar to that of Song Zhiwen, an important assistant under Zhang Yue's command and the governor of eastern Sichuan in the puppet Mingjing King regime, people who don't know still think that they are brothers, but in fact, these two people can't fight together in eight lifetimes.

Song Zhilin is a bandit born in the Huangzhushan period, when he was in the Huangzhushan period, he was from the dragon, belonged to the root of the Miao Hong, the most senior early officer, if you ask him if he and Song Zhiwen are brothers who have been separated for many years, people will turn their faces with you in minutes.

He was a cavalryman behind Lu Yuzhi's ass in his early years, and he was also one of the few bandit-born officers in the Tang Army who had not fallen behind and was still serving in the field army, and now he was a colonel in the army and the commander of the First Lancer Regiment.

When Li Xuan came to the barracks of the Guards, the first thing he saw was this lancer regiment!

Although there were not many troops, only more than 400 lancers, and there were originally more than 500 horses, nearly 100 horses came to the Central Plains from the northwest region, and they died one after another on the road and after arriving.

But there were far more than 400 Central Asian horses, and there were more than 400 Mongolian horses!

Because in order to maintain the combat effectiveness of these lancers, the Tang Army had the luxury of equipping these lancers with two horses, of course, the other horse assigned to them was just an ordinary Mongolian horse, which was mainly used to carry some equipment, and occasionally the cavalry could also sit on this Mongolian horse for a quick march.

As for the more than 400 Central Asian horses, they are all very valuable, and they will never be ridden on daily marches except for training and combat.

Even these cuirassiers will be accompanied by an additional squire, they do not participate in the battle, most of the time to help carry various equipment, manage the horses, help to put on the cuirass before the battle, help the knight on the horse, if necessary, they will also ride the Mongolian horse to fight together.