Each infantry battalion has six infantry units, plus the forces directly under the battalion headquarters, and the standard full strength of each infantry battalion is 850 men.

An infantry regiment has four combat battalions, and with the addition of the scattered artillery team, reconnaissance cavalry, and guards directly under the regimental headquarters, the strength of an infantry regiment reaches a huge strength of about 4,000 people.

In fact, the new establishment of the army is still a great reference to the establishment of the Guards, because the establishment of the Guards is the establishment of large battalions and brigades.

The strength of one team of the Guards is about 140 men, and each infantry battalion of the Guards has six teams.

However, in terms of regimental establishment, the Guards also kept pace with the times, following the example of the army and changing to a five-battalion establishment.

Therefore, in the current army reform, in fact, below the regimental level, the Guards and the army imitated each other, and finally formed a unified infantry regimental establishment, with a total strength of about 4,000 men in each infantry regiment, and four infantry battalions under its jurisdiction, each infantry battalion under the jurisdiction of six infantry units, and each infantry team with 140 men.

And this reform of the formation of the infantry regiments of the army and the Guards Army also directly led to the further expansion of the size of the infantry regiments!

However, this expansion of the size of the infantry regiment can be regarded as a further extension of the tactical change of the Datang Army to a certain extent!

Because with the passage of time, the tasks of the army, division, regiment, battalion and other units at all levels of the Tang Army have undergone great changes.

In the past, an army was only responsible for a battle line, and a division was the basic tactical unit.

But now on the side of the army, an army has become a theater-level command organization, which is responsible for campaigns that are often aimed at a certain direction, such as the Fifth Army in charge of the northwest direction, the Third Army in charge of the Tatar war in the north, and the Sixth Army in charge of the war in Liaodong.

In this kind of big background, an infantry division has actually become a strategic unit, rather than a basic tactical unit, and an infantry division is often responsible for the battle of an entire front, for example, in the Battle of the Goryeo Peninsula, it is actually a one-man show of the 15th Infantry Division.

So what is the basic tactical unit, is an infantry regiment!

When it came to a specific small and medium-sized campaign, there was actually not a single regiment, and it was often dominated by battalions.

In fact, most of the time it is an infantry regiment or division-level battle, and often only large-scale strategic decisive battles will appear.

Because of the strengthening of the infantry battalion, the army side is happy to see it.

The Guards have also seen this change in recent years, and when they were on the Goryeo Peninsula, the Guards sent a reinforced battalion, not a regiment or a brigade or anything like that.

Because the main task of the Guards is to defend Gyeonggi, during the war, sending troops to other places to participate in the war is just a rotation to maintain combat effectiveness, and it is impossible to transfer too many troops, but it is too small and difficult to arrange, and the size of these 2,000 people is appropriate.

This is also why the Guards Army was previously composed of the First Infantry Division of the Guards Army and the Second Infantry Division of the Guards Army, but in addition to going out with the car, there has never been a situation where a whole division has been dispatched, and more often it is a temporary brigade, in fact, it is a reinforced regiment mode to send troops to other places to participate in the war, and sometimes only one reinforced battalion is sent.

Later, Li Xuan simply abolished the establishment of the Guards Infantry Division, and at the same time set up the Guards Brigade according to the mixed brigade model of the previous Guards Army's dispatch to fight, each brigade is a standard mixed brigade, with two Guards Infantry Regiments, a large-scale artillery battalion, a large-scale baggage battalion, and a cavalry regiment, plus other directly subordinate troops, each brigade

After the reform of the entire Guards, it was changed from the previous two Guards infantry divisions to three Guards brigades, and the brigade commander was the rank of Major General of the Guards.

However, it is said that it is a brigade, but in fact the total strength is more than 10,000 people, and the total strength of each brigade has reached about 12,000 people, and the total strength of the three brigades of the entire Guards Army is 36,000 people.

The adoption of large establishments can be regarded as a trend of gradual development of the Imperial Army in recent years, and it does not matter whether it is right or wrong, because this development is a kind of suitability and tradition to follow.

A brigade of the Guards would have reached 12,000 men, and the army's infantry divisions would have grown even larger, otherwise they would not have been able to undertake the strategic tasks of an entire front.

The three infantry regiments, together with artillery, baggage, cavalry and other units, now the army's entire infantry division is now at full strength, with a total strength of 18,000 men.

Sixteen infantry divisions, plus the troops directly under the various military departments, that is 300,000 people!

And this does not include the independent units directly under the army, in addition to the sixteen infantry divisions, the army also has three cavalry brigades, each of which is 4,000 cavalry.

Then there were several independent garrison regiments, mainly garrison troops stationed in more important areas, such as the Jiangyin garrison regiment and the Jiujiang garrison regiment, these two garrison regiments were actually fortress garrisons, one east and one west, guarding the Yangtze River and guarding Gyeonggi.

In addition, there are garrisons stationed in overseas areas, such as the Ryukyu garrison and the Luzon garrison.

Then there are independent troops, such as the Zhouqiao Battalion and the Siege Heavy Artillery Battalion, which are either directly under the military department or the Privy Council.

Therefore, if the infantry divisions and cavalry brigades, plus many independent units, the total front-line combat strength of the army is about 350,000 people!

And this does not include civilian officers and other personnel in the Privy Council, nor does it include reserve divisions and personnel under the jurisdiction of the provincial garrison commands.

In addition to these 350,000 front-line troops, the Datang Army also has a large number of reserve division troops, and each province will deploy more than two reserve divisions according to different situations.

Basically, the importance is relatively large, and at the same time the situation is not very stable, and the provinces with few front-line troops will have more reserve divisions stationed.

For example, Liaodong Province, although this province has a small population, and there are many regular troops, but because it is located in the border, and they are all newly occupied areas, so it has a very large number of reserve divisions, just the four provinces of the Goryeo Peninsula have three reserve divisions stationed, and then there are several other places, the entire Liaodong Province, the total population is only four million, but it is stationed in a full seven reserve divisions, if you add two infantry divisions, the total strength of Liaodong Province is more than 100,000.

In the four provinces of Zhili, the size of the reserve division is also quite a lot, even if the regular army strength in this place is already very large, the first army with outstanding military achievements is stationed in the four provinces of Zhili, and there is also a guard army, the two together The strength of the regular army has reached seventy or eighty thousand people, and almost one-fifth of the front-line combat power of the entire empire is deployed in the four provinces of Zhili.

The strength of the regular army is strong, and if it were other places, there would basically not be too many reserve divisions, but the four paths of Zhili are different!

This place is so important, not only does it have the political heart of the empire, Jinling City, but also the four provinces of Zhili have become the veritable economic heart of the empire!

This is the most important food producing area of the Empire, and it is also the core of the Empire's manufacturing industry!

With the rise of the Dangtu Industrial Zone and the Shanghai Industrial Zone, it has gradually replaced Zhaoqing and Guangzhou in Guangdong as the most important industrial manufacturing base in the empire.

Here, it is not an exaggeration to say that it occupies half of the wealth of the entire Tang Empire!

Losing Liaodong and even the entire north, Li Xuan has the confidence to rearm and then kill back, but if he loses Jiangnan, he will starve to death!

This situation is actually the same as the original former Ming Dynasty, but although the capital of the Ming Dynasty is in Youzhou, in fact, the core area that supports the rule of the Ming Dynasty is still Jiangnan.

Therefore, it is very important to guard your own basic plate, and it is useless to let the core ruling area ignore the hollowed out by those scholars, and only know that shouting for the Son of Heaven to guard the country.

By placing the political focus on Jiangnan and stationing heavy troops, Li Xuan was confident that he would be able to smoothly advance Jiangnan when he completely grasped Jiangnan in his own hands and promoted various reforms.

In the past few years, the various reforms of the Tang Dynasty, especially the reform of agriculture and taxation, have offended many people, and there are countless people who have armed to resist taxes and even raise a large army to rebel, but they have been suppressed one by one by the heroic and invincible Tang Dynasty.

Therefore, Li Xuan has been very vigilant in the past few years!

Be wary of civil unrest!

Therefore, after the Sixth Army sent troops to Liaodong, the First Army quickly returned to defend Zhili Sidao.

And such an important Zhili Four Dao, in addition to the regular army, there are many reserve divisions It is not surprising, just look at Jiangnan Dao, this small Dao, there are four reserve divisions stationed!

Yes, that's right, four reserve divisions!

Moreover, in addition to these four reserve divisions, the Second Infantry Division of the First Army is also stationed in Songjiang Province, and the most important naval base in the navy, Wusong Naval Base, is also in Songjiang Province, where the navy is stationed in addition to warships and sailors, and a marine regiment is stationed!

This small place in Songjiang Province is a big palm, but in fact, it has more than 30,000 ground troops and army and navy troops stationed there!

Similarly, the situation is similar in the other three Dao of Zhili, although it is not so expanded, but basically there are more than two reserve divisions in each Dao!

The reserve strength of the entire Zhili Sidao is more than that of Liaodong Province!

And this is also a matter of no way, who made the four paths of Zhili so important!

In addition to industrial and economic factors, the availability of troops is also very important.

Because of the large population of Zhili Sidao, Zhili Sidao is the most important grain producing area of the Tang Empire, and there are many people who can feed it, and this population is large, and the number of soldiers is naturally enough.