Forming a basic tactical unit with the ability to independently launch a medium campaign of between 1,000 and 3,000 people is very urgent for today's Datang New Army.

Because it is foreseeable in the future that it is impossible to say that the tens of thousands of people of the Datang New Army have been concentrated together to fight, after occupying Xingquan Mansion, it is surrounded by enemies on all sides, and in the foreseeable future, there will be a large number of Ming troops attacking Xingquan Mansion from many aspects, which requires the Datang New Army to have multi-front combat capabilities.

At the same time, the size of the Datang New Army will continue to swell to 10,000 people in the next month or two, and within this time, Li Xuan will not only have to organize into a basic tactical combat unit, but also formulate some operational regulations for such basic tactical units and improve operational theory, which will take time.

This war does not mean that someone can have a gun, but it needs to be supported by military theory.

How this military theory came to be naturally overturned by relying on a great deal of training, deduction, and display, and it is impossible to say that it was used after it was conceived out of thin air.

And this also takes time, so Li Xuan didn't plan to delay it for too long, and soon he and a group of staff officers from the Operations Division conducted a continuous exercise for several days.

In the process of deduction, Li Xuan didn't even pay too much attention to the battle on the Lianhe County side, just read the battle report every day, and Wang Danxu fought in a decent manner on the Lianhe County side, defeating several groups of small and medium-sized Ming troops along the way, and now he has advanced to the county seat of Lianhe County, and is preparing to launch a general attack on the county seat.

With the strength of Wang Danxu's command, it is naturally not a problem to conquer Lianhe County, and the reason why Wang Danxu is in a hurry to attack is to avoid a large number of casualties.

How Wang Danxu fought on the side of Lianhe County, Li Xuan did not interfere, anyway, as long as there was no big accident, the result was doomed, as for the process, Li Xuan didn't pay much attention now.

In the past few days, his focus has been on the expansion of the army, and after formulating solutions to many problems such as recruitment, salary, and artillery in the expansion of the army, he has put most of his attention on programming basic tactical units.

To form a basic tactical unit, it is necessary to take into account the size of the Datang New Army and the basic establishment, which is more than 10,000 people, and the basic establishment is the infantry battalion.

For this reason, Li Xuan considered using two infantry battalions or three infantry battalions or even four infantry battalions to form an infantry regiment, but should it be a small regiment organized into two battalions, or a medium regiment organized into three infantry battalions, or simply a large regiment with four infantry battalions?

Also, whether auxiliary troops should be added, how much, and how to allocate them.

These are all careful and repeated deductions, and then we can come up with a plan that is most suitable for the new army of the Tang Dynasty.

Not the best, but the most suitable.

After several days of deduction, Li Xuan also made up his mind, and he decided to allocate three infantry battalions to each infantry regiment.

However, among the three infantry battalions, these three infantry battalions are not limited to regular infantry battalions, but also garrison battalions.

At the same time, considering that the infantry regiment needs to undertake the combat mission of a single front, it is used as a basic campaign and tactical unit, so it is also necessary to equip them with the necessary auxiliary troops, such as artillery, cavalry and other units.

After a few days of exercise, the Operations Division suggested that the auxiliary units such as the reconnaissance platoon, artillery platoon, and baggage platoon, which were originally scheduled to be assigned to the infantry battalion, be directly assigned to the direct command of the infantry regiment, and the infantry battalion should return to a simple single-arm unit, and if there is a need in wartime, it should be temporarily strengthened to the infantry battalion for combat.

The cavalry, artillery, and baggage units concentrated under the command of an infantry regiment are more conducive to centralized training and command.

But in this way, the previous configuration of the infantry battalion was basically broken, but Li Xuan agreed after thinking about it for a long time, anyway, the establishment was still being formulated in the past few days, and the army did not implement the establishment of the new infantry battalion, and only needed to make slight changes in the documents.

After such adjustments, the infantry regiment of the Datang New Army will be fully established, and it will have three infantry battalions, one cavalry team, one light battalion artillery team, and one baggage team.

Each infantry battalion has five infantry teams, and it is stipulated that there must be two musket teams, two spear teams, and the fifth team is used as a supplementary team, so to speak, musket teams, spear teams, sword and shield teams, bow and arrow teams, etc.

There is also a battalion headquarters in the infantry battalion, which includes officers, staff officers, heralds, personal soldiers, clerks, military musicians, and men.

The battalion headquarters plus five infantry squadrons, the total strength of one infantry battalion is 542 people.

If the infantry battalion is out fighting alone, it will be accompanied by auxiliary forces, and it will reach more than 700 people by then.

The infantry regiment, which consisted of three battalions and auxiliary units, had a full strength of 2,000 men.

The 2,000 men, which include various arms of the armed forces, are basically able to undertake the vast majority of basic tactical campaign and combat tasks, and if they want to undertake more important combat tasks, they will continue to strengthen a number of units, infantry battalions, or artillery teams, so that an infantry regiment can become a mixed regiment.

The Datang New Army is expected to be organized into four infantry regiments.

The total strength of these four infantry regiments is about 8,000 people, and the rest are artillery battalions, baggage battalions, cavalry teams, sword and shield teams, archers and other troops directly under the Privy Council.

The total strength of the army is still 10,000 people, and it has not changed much.

After this brand-new establishment was formulated, Li Xuan did not delay it for too long, and soon promulgated it, allowing all units to complete the reorganization and expansion of the army according to the new-style establishment plan.

In addition to the expansion of the army and the content of the preparation, the new army expansion plan has further improved the details of the Datang New Army, and many details have been formulated in great detail, such as how to bandage the burden of the march, and how to walk on regular occasions must be held high and wearing clean and tidy military uniforms. Even the titles are uniformly regulated, and they are no longer the random names that were used before.

Thus, the names of platoons, teams, battalions, regiments, brigades, divisions, and armies at all levels were formalized, and it was made clear that the titles of officers of superiors should not be called adults, but commanders, and the full names and positions should be used on formal occasions and official written documents, such as Zhang San, Captain Li Si, battalion commanders, regiment commanders, brigade commanders, and division commanders, and they could not use messy characters and numbers.

This plan to change the expansion of the army, in addition to making the tax collectors complain every day that they can't afford to support tens of thousands of people, the officers and even ordinary soldiers in the Datang New Army are elated, why?

Because once the army is expanded, they will all be promoted!

The platoon commander will become the captain, the captain will become the battalion commander, someone among the battalion officers will become the regiment commander, and even an ordinary soldier will become a private of the first class, a private of the first class will become a corporal, and a corporal will become a sergeant.

The promotion caused by the expansion of the army is universal, basically half of the people in the whole army have been promoted, and the officers are generally promoted by one level, and a few outstanding people are promoted by two levels in a row, such as from the platoon commander to the captain, or the captain to the battalion commander, and the battalion commander to the regiment commander.

But the expansion of the army has also caused a big trouble, that is, there are not enough officers in the Datang New Army!

After all, the previous expansion of the Datang New Army was relatively slow and the scale was relatively small, but now the army has been expanded to 10,000 people all at once, and the number of officers needed is hundreds.

Although the Privy Council is recruiting scholars to serve as officers in the army every day, and the scale of the Imperial Academy is getting bigger and bigger, it is still unable to meet the huge demand for officers in the Tang New Army in a short time.

In this regard, Li Xuan instructed the Quanxu Division to let them select talents from among the outstanding non-commissioned officers and appoint them as grass-roots officers, grass-roots officers, it is not necessary to be literate to be literate, besides, even if they are illiterate, they can also be allowed to learn culture after becoming officers, just take the opportunity to engage in a literacy class.

Originally, Li Xuan planned to open a literacy class in the army, trying to improve the literacy rate in the army, and the promotion was naturally not to make them more able to fight, in fact, it was illiterate or reading and literacy, there was little difference between ordinary soldiers, they were all cannon fodder who acted according to orders, but Li Xuan planned a plan in the later stage, that is, when the scale of the army became larger and larger, a large number of grassroots officers could be trained from within.

The literacy rate in these years is too low, and it is quite difficult to recruit ready-made scholars to study in the martial arts academy and then train them as officers, because there are few scholars who have taken refuge in the Tang Dynasty, and most of them are rushing to become civilian officials, and few are willing to join the army.

In addition, these literate soldiers can not only become potential officers, but also after they retire, they will be able to take on many grass-roots government positions in the local area, and the officers can be officials at all levels, such as county magistrates, town chiefs or section chiefs, section chiefs or whatever, even ordinary soldiers, as long as they are literate, then they can be ordinary section members.

And this is the main reason why Li Xuan wants to open a large-scale literacy class in the army.

These retired civil servants in the army will become the most solid grassroots ruling core of the Tang Dynasty.

As long as these retired soldiers are still alive, then the ruling foundation of the Tang Dynasty is solid, and there is no need to worry about things that cannot be controlled at the grassroots level.

Therefore, literacy classes are mandatory, and they are starting in the whole army, and every soldier needs to participate!