On the third watch day in Yuguan, the moon girl in mid-air showed a half-curved smile, and the vast earth was sprinkled with silver light.

On the wall, the soldiers of the Guards, either with bows and crossbows, or with swords and shields, firmly guarded Li Zhongyi in the inner circle, for fear of a slight mistake.

Li Zhongyi turned his head to look at the situation on the wall, but his vision was blocked by the thick human wall, although he was slightly dissatisfied in his heart, he had to pinch his nose and admit it.

The Guards are doing the job of protecting the commander, this is their duty, and Li Zhongyi is a very well-behaved person, so it is naturally difficult to say anything.

In fact, according to the military regulations of the guards that the generals gathered to supplement, if Li Zhongyi, the commander-in-chief, fell into the enemy position, the entire guards should be killed.

This regulation is actually derived from the military law of losing a general before the battle and beheading all the teeth. Moreover, being effective only against the Guards is not a one-size-fits-all principle.

As the saying goes, the three armies are easy to get, but one is hard to find!

However, this sentence is not fully applicable to Li Jiajun's head.

Compared with any army today, the Li Jiajun, which has a powerful and perverted grass-roots officer corps, has a military command system that is quite unbreakable and cross-era.

Specifically, whether in peacetime or wartime, all units of the Li Jiajun have a complete order of succession of command according to the instructions.

Generally speaking, if an accident occurs among the military commanders, the deputy commander, who is in charge of commanding operations, can immediately take over the command after being confirmed by the pacification envoy and the military legal envoy stationed in the camp.

Zi Shizheng, the deputy commander of the Senate Department Inspection and School Yang Wushuang, climbed the steps up the wall, walked quickly in front of Li Zhongyi, and whispered: "Lord, everything is ready." ”

Li Zhongyi smiled slightly and said softly: "Then let's start acting." "That look of calm wind and clouds, as if the army set off just to go out of the customs.

Yang Wushuang's spirit perked up, he clenched his fists and arched his hand, and said softly, "Since the late Tang Dynasty, the bad days when the Khitans wantonly bullied my Han people are gone forever. ”

Li Zhongyi looked at Yang Wushuang with a smile, and after pondering for a moment, he immediately ordered: "Pass my words, those who take Jizhou first, and don't hesitate to reward the marquis of ten thousand households." ”

Jizhou, that is, Yuyang at the time of An Lushan's rebellion, that is, Jizhou District under the jurisdiction of Tianjin Municipality in later generations. Jizhou is only more than 200 miles away from the most elite place of the Khitan Kingdom - Nanjing Xijin Mansion.

Militarily speaking, as long as Li Jiajun takes Jizhou, it is equivalent to completely opening the door to Nanjing Xijin Mansion, and the Nanjing Road of the entire Khitan Kingdom will definitely be shocked and frightened.

Wan Hu Hou? Yang Wushuang couldn't help but feel a fierce heat in his heart, and he couldn't wait to apply on the spot to lead an army alone and set foot on Jizhou.

"Why don't you take Wu Hook and collect Guanshan Fifty Prefectures. Please go to Lingyan Pavilion temporarily, if you are a scholar and a marquis! Yang Wushuang's brain was particularly flexible, and he took the opportunity of chanting poetry softly to express his desire to lead the army into battle and tear it apart.

Li Zhongyi clearly understood, but he pretended to be confused, in his mind, the work of the Senate Department was actually far more than commanding and killing.

Seeing that Li Zhongyi didn't squeak, Yang Wushuang was intimidated by the commander's prestige, and didn't dare to force it, so he had to pinch his nose and walk down the wall quickly.

With the sound of short and powerful military orders, the two heavy doors of Yuguan slowly opened under the impetus of dozens of strong soldiers. Due to the grease on the door shaft in advance, Li Zhongyi on the city wall, although he had been listening attentively, only heard a slight creaking.

Hmm, the preparation is extremely sufficient, Li Zhongyi nodded with satisfaction, and focused on the road out of the customs.

The flags that were supposed to be unfurled were quietly rolled up, the soldiers had wooden branches in their mouths, and the horses under their crotches were wrapped in thick linen cloth on their hooves, and the iron rings of the scabbards were also wrapped in linen cloth to avoid the harsh sound of metal impact.

According to the plan of action drawn up by the Senate in advance, in order to avoid the reflection of the helmet in the moonlight, they were simply wrapped in linen.

Since the occupation of Goryeo, under the tyranny of Li Zhongyi, the baggage and materials are extremely abundant. Not to mention anything else, the sapper shovel, which could not be fully equipped due to the lack of iron tools, is now a handle for all employees.

The main goal of the campaign was actually to destroy the spring sowing seeds in the area east of Youzhou.

At this time, the sapper shovel came in handy, tens of thousands of elite troops and tens of thousands of slave auxiliaries of various ethnic groups waved the shovel together, and in a few days, all the spring sowing fields in a state could be excavated.

Of course, in addition to destroying the spring sowing in various parts of Nanjing Road, the granary in Yuguan Zuo Jinzhou County is also an important target for Li Jiajun's nest out of the customs this time.

Before the renovation of the Yuguan, the gate was narrow, and only five people were allowed to pass side by side in the doorway. Today's Yuguan City Gate, five parallel carriages are more than enough, which greatly speeds up the speed of Li Jiajun's exit.

In front of the wall, on a trench about two feet wide, the soldiers of the engineer battalion had already set up a springboard. As soon as the soldiers left the city gate, they dispersed to the left and right according to the established marching route, and quickly passed through the thick gangplank, rolling westward.

On the two flanks of the direction of the march, the soldiers of the cavalry battalion lined up to guard it, which was also Li Zhongyi's practice of using troops cautiously for many years.

Before the Li Jiajun sent out his troops, it had long been a rule in the order to release elite throats hundreds of miles away.

If you are not afraid of 10,000 in everything, you are afraid of what happens, and in the process of marching the army, it is most likely to encounter a sudden attack by the Khitan light cavalry. Therefore, the cavalry battalion that has been stationed outside the city to fight against the Khitan grass valley is duty-bound to take on the important task of covering the actions of the whole army.

With the cover of the cavalry battalions on both flanks, the large army marching in the middle had time to line up with the enemy. To put it mildly, as long as the Li Jiajun is in a good battle formation, it will basically be invincible.

Historically, the Han army fought against the steppe barbarians, and as long as the Han army had time to set up a formation, the barbarians did not dare to sacrifice their lives to attack hard in most cases, but could only adopt the so-called wolf pack tactics of cutting off grain routes and attacking with light cavalry.

Li Guang, who could never be crowned a marquis, fought against the siege of tens of thousands of Hun cavalry with 5,000 men, and was defeated and captured until the bow and crossbow were fired.

Today's Li Jiajun, whether in terms of combat experience, weapons and equipment, organizational discipline, or the ability of the grassroots officer corps, is far superior to the county soldiers led by Li Guang.

The art of war has clouds, husband war, win with righteousness, and match with odds!

Li Zhongyi's principle of employing troops is extremely serious, and he would rather not win than act rashly. This point is very similar to the famous general Wang Jian at the end of Qin.

I think that at the beginning, when the Qin State was attacking Chu, the hot-headed winner Zheng, at first believed the hairless Li Xin, and only sent 200,000 Qin troops to destroy Chu, but was killed by Xiang Yan and lost.

In the end, Ying Zheng put down his body, took the initiative to come to the door, and sincerely asked Wang Jian to give 600,000 soldiers and horses. Wang Jian also lived up to the trust of the King of Qin, led the soldiers of the country, step by step, steady and steady, and finally destroyed the once powerful Chu State.

The 600,000 Qin army attacked the 400,000 Chu army, and did not give the commander of the Chu army, Xiang Yan, any chance to get away with it, this is called a dignified division, and win with absolute strength.

The 60,000 army left Yuguan, and the leader of the team was already ten miles away, and the vanguard of the guards who were in charge of the escort had not even walked out of the city gate.

According to the usual practice, the Senate Division, as well as the auxiliary services such as the baggage battalion, the artillery battalion, and the craftsman battalion, all acted with Li Zhongyi's Chinese army, and the Guards were responsible for guarding them.

It was not until the sun hung in the air that the Guards, who had been resting in place for a long time, received the order to march, and everyone got up one after another, and marched out of the city at the sound of the officers' orders.

"Master, you've been standing for a night, why don't you go back to the carriage and rest for a while?" Li Yunxiao was worried that Li Zhongyi's body would not be able to bear it, so she had the courage to lean over and whisper advice.

Li Zhongyi saw that the vanguard of the Guards had already left the city, so he nodded, and walked down the city wall surrounded by the guards and soldiers.

Under the steps by the city wall, more than ten tall and spacious four-wheeled carriages are lined up, which looks extraordinary.

Li Zhongyi walked to the four-wheeled carriage and did not immediately step on the long wooden bench to get on the car, but stopped and patted the thick wheel gently.

The four-wheeled carriage, in fact, was used very early in some merchants in Kaifeng City, and it was not a particularly rare thing. Of course, the four-wheeled carriages in Kaifeng City were actually dragged by oxen in most cases, and there was no front-wheel steering suspension axle system.

Due to his hobby, Li Zhongyi once carefully studied the "Qingming Riverside Map", and there is a clear record of the four-wheeled carriage in the picture.

However, the four-wheeled carriage that could not be turned could only be transported in a short straight line in Kaifeng City, where the streets were wide, and as long as it left Kaifeng City, it would be difficult to move an inch.

As one of the ministers of the political hall, Li Zhongyi certainly knows the reason why the four-wheeled carriage cannot be popularized. The core is that, except for the Qin and Han dynasties, which were diligent in repairing roads, the imperial dynasties of all dynasties did not pay much attention to the problem of road construction.

If you want to get rich and build the road first, except for Li Zhongyi, no one knows the logic.

In addition, even if the imperial court built the official road on a whim, it would not pay attention to the problem of maintenance, so that the road was always in a dilapidated state.

It's hard to get sunny. As long as it rains, on muddy roads, let alone four-wheeled carriages, even unicycles, are easily trapped by potholes.

This time out of Yuguan, along the way are a large plain of Pingchuan, and the road conditions are far better than those in the Central Plains.

Li Zhongyi is not short of horses now, the four-wheeled carriage, which is more spacious and comfortable than the two-wheeled carriage, is dragged by four or even eight good horses, which not only ensures the speed of the march, but also makes people much more comfortable, why not?

As for the steering system of the four-wheeled carriage, in fact, it is very easy to achieve on the basis of having an axle, only need to change the suspension of the front wheels to a large disc.

The part of the wheel that connects the wheel to the body is combined with the front wheel suspension, so that when the horse turns, the front wheel suspension follows the overall steering. Due to the action of the rollers in the wheels, the front and rear wheels are able to automatically adjust the speed difference between the wheels. This suspension mode can not do small angle steering, can not do too fast sharp steering, and the suspension of the front wheel and the structural strength of the entire transmission system are required to be higher.

However, behind the successful development and manufacture of the four-wheeled carriage with the steering system is the blood and tears of the slaves of Goryeo craftsmen.