After Empress Changsun fell ill, Li Er, who was emotionally devastated, felt that his old man was gradually passing away, and he actually began to feel nostalgic.

He asked the court painter Yan Liben to paint the portraits of many heroes, and then hang them in the Lingyan Pavilion as a commemoration.

Originally, Li Er planned to include Li Yunze in it, but he sternly refused, saying that he had no intention of being hanged.

At this time, the most popular painting style in the Tang Dynasty was the so-called realistic style of sketching.

Datang has always been very tolerant in terms of culture, and it has always been ink painting that dominates the painting world, but now a new technology has suddenly appeared, which is naturally extremely popular.

Therefore, when Yan Liben paints, he also uses the most trendy sketch realistic style, and Li Er has no objection to appreciating this, and thinks it is very good.

Li Yunze disagrees with this.

He found Yan Liben and used him to secretly sell illustrated albums as a threat, and asked him to redraw a set of twenty-four heroes in the style of ink painting.

Yan Liben had no choice but to draw another set of drawings in a time-consuming and laborious manner.

This set of twenty-four heroes of Lingyan Pavilion was brought back to the modern world by Li Yunze as a collection.

It is definitely the original authentic handwriting, and there is Li Er's seal as evidence.

Many of these heroes who have entered the portrait have already entered the soil at this time, and most of the remaining military generals, except for the civil ministers, are old, and there are not many who can finally follow Li Er to Goguryeo.

Although Li Yunze and Sun Simiao's cooperation has improved Datang's medical level, it has indeed successfully extended the life expectancy of many people.

But this is only a symptom rather than a cure, that is, a few more years to live.

Li Tao was the scheduled general of the expedition to Goguryeo, and he had already presided over the preliminary preparations here in Youzhou for a long time.

Li Xiaogong did not die violently, and was sent to Jiangdu to take charge of the fleet, first sending Li Chengqian and others overseas, and then taking the fleet to Baekje.

Since the last time he rescued the Western Regions, Wei Chi Jingde has become active again, and this time he also followed Li Er's side as a protector.

Li Jing is really old, but even if he is almost seventy years old, he is still taken by Li Er to be a senior counselor.

Duan Zhixuan is in the prime of life, and this time he will have the opportunity to lead the troops.

In addition, people such as Zhang Liang and the eldest grandson Shunde have already given up, and they are singing and dancing beauties in the house all day long, so naturally they will not be brought with them.

In fact, in addition to the twenty heroes of Lingyan Pavilion, the new generation of generals is also gradually growing, and this time Li Er also brought them all over.

Li Er used Li Daozong to temporarily conquer the up-and-coming Su Dingfang in the Western Regions, and Xue Rengui, who rose like a comet, because of Li Yunze's insistence, his wife Princess Danyang was locked up, thus avoiding Xue Wanche and others, who were stimulated to rebel, from going out with the army.

Not surprisingly, this time Li Yunze was also appointed as the marching Sima and was responsible for the logistics support of the army.

Li Er was determined to pacify Goguryeo in a war, and thus completely pacified the surrounding disobedience, laying a peaceful environment for the Tang Dynasty.

In this battle, almost all the field soldiers and horses that could be mobilized were mobilized, and even arranged for Zhang Shigui and others to recruit soldiers as reserves again.

In the autumn of the fifteenth year of Zhenguan, hundreds of thousands of Tang troops gradually gathered in Youzhou.

The first to act was Zhang Jian, the governor of Yingzhou, who led the border army of the Tang Dynasty and the Khitan, Xi, and Jin tribes on the grassland who were honestly tamed after being reduced to Ding, and attacked from the grassland, with the intention of dispersing Goguryeo's forces.

Later, the fleet of Yi Hyo-gong's troops, who arrived in Laiju, began to attack and blockade the waters off Goguryeo and Baekje.

The fleets of Goguryeo and Baekje did not dare to fight, and they all took refuge in the harbor.

In early October, Yi Er's envoys arrived in Silla and ordered Queen Seondeok of Silla to send troops to flank Baekje and Goguryeo.

Queen Seondeok, who claimed to admire Yi Er, was really frightened, after all, in the eyes of Silla, Baekje and Goguryeo were heaven-like beings, and they really didn't dare to offend.

But Li Erdu spoke in person, and Datang was an existence that could not be offended, so he accepted the suggestion of his subordinates in a dilemma, and sent troops to attack and disturb the wall, and then talk about the direction of the wind.

Regarding this style of wall grass, Li Er didn't see it for the time being.

Of course, when the war is over, there will be a saying.

It naturally doesn't matter if you do it for the wall grass on weekdays, but at this time, it is obviously the wall grass in the context of the national war, so it is really time to be the grave grass in the future.

At the end of October, Li Tao, the general manager of the march of Liaodong Road, personally led nearly 100,000 people to march to the Tang Army, and crossed the Liaoshui to approach Xuansu, which was one of the four counties in Liaodong in the Han Dynasty.

In this battle, Li Er was also in the name of recovering the old land of the Han Dynasty, and almost all the four counties of the Han Dynasty were occupied by Goguryeo and Baekje, and the two sides were naturally endless.

Li Tao's strength is strong enough, and his own command ability is also good enough, he attacked Gaimu City by himself, and divided his troops to Su Dingfang to attack Xincheng.

Both cities were fought in a battle, as they both used gunpowder to blow up their walls.

The strong city defense that once gave millions of Sui troops a deep headache and could only be filled with their lives, was as fragile as tofu in the face of gunpowder and vulnerable.

After the city wall was blown up, the phalanx of Tang Army armor soldiers wearing heavy armor crossed the ruins and entered the city, and basically the battle could be declared over.

The forward made rapid progress, and Li Erda, who learned the news, was overjoyed, and immediately set off from Youzhou with the main army.

With such a large legion, it is naturally impossible for them all to gather together.

Li Er arranged for many generals to lead their troops to scatter and attack, forming a wide front to crush Goguryeo.

As the time entered the winter, Li Xiaogong's sailors had to return to Laizhou because of the freezing sea.

And the Tang army also began to gradually slow down the pace of its advance.

The reason why he wanted to send troops in the winter was to gain a front-line stronghold through the winter campaign, consume the living forces of Goguryeo, and burn the flames of war into the enemy's territory.

When spring arrived, the Tang army could directly attack on all fronts and take advantage of the good weather for nearly a year to level Goguryeo in one fell swoop.

After all, Goguryeo is not a nomadic tribe like the Turkic Hui Xue Yantuo, and the people are really an agricultural country with the city as the core.

Deal with the nomadic tribes and defeat their royal court.

To deal with an agricultural country, it is necessary to conquer all the cities everywhere.

Goguryeo is thousands of miles in land, and it will take time for the Tang army to sweep all the way.

Therefore, the strategy of sending troops to obtain front-line strongholds in winter and destroying the country in one fell swoop in the coming year has been recognized by everyone.

With the onset of winter, the threats that the Tang army needs to face come from two main sources.

One is naturally the time of day, and the cold weather will pose a huge threat to the Tang army.

Another is the counterattack of the Goguryeo people, Goguryeo, who is more adapted to cold weather than the Tang army, and has the ability to launch a large-scale counterattack.

The news from the inside line of Goguryeo was that the minister Quangai Suwen and the king Gao Jianwu had stopped fighting and reached a settlement, and were raising soldiers, horses, food and grass to prepare for a counterattack.

And what came faster than the Goguryeo army was the raging cold wind and goose feather snow.

Li Er's movements were very fast, and he soon arrived at the city of Liaodong after crossing the Liaoshui.

When the siege was about to be launched, it was snowing heavily and had to suspend the operation.

Tens of thousands of tents surrounded the city of Liaodong, each with a stove with a sealed chimney burning honeycomb coal to provide heat to the tent.

Here in China, we have known the benefits of coal for a long time, and it has been used for a long time.

However, because it is not known that the direct use of coal can cause carbon monoxide poisoning, charcoal is usually used for heating, and coal is mainly used for ironmaking and other aspects.

However, the phosphorus and other impurities in the coal affect the quality of iron.

The emergence of coal stoves with chimneys and honeycomb coal solved the problem of coal heating.

When the smoke and dust were discharged into the sky through the chimney through the reserved opening in the tent, the Tang soldiers in the tent could finally sleep beautifully around the stove.

This kind of cognition and technology is nothing to modern people.

But for the ancients who have been plagued for thousands of years, it is a groundbreaking technological upgrade.

The impact it has had is indescribable.

At the very least, the current Tang army can camp in the wilderness in the cold winter.

In addition to coal, the standard equipment for heating in the Tang Army was a blanket made of woolen wool, which was spread on a rubber water discharge mat to effectively isolate the cold.

Then put on cotton underwear and woolen sweaters and woolen pants, and put on a cotton coat outside, talking and laughing around the fire.

When you sleep, cover yourself with a quilt, and even if the temperature drops to minus at night, you can still carry it.

Li Er's tent was the largest in the army, and after it was supported and erected, its area was as vast as a small palace.

The generals of the army gathered here to discuss the situation of the battle.

There were several coal stoves burning in the big tent, and the warm heat was vented, making the whole big tent warm like spring.

Dozens or hundreds of generals and generals above the rank of captain gathered here, gathered together to talk and talk, and the buzzing sound was endless.

As an upstart who has only emerged in recent years, Xue Rengui has no connections here, and after looking around, he walked to the corner, sitting on the horse and sleeping Li Yunze.

"Lord Wang."

"Huh?"

Xue Rengui squatted down after saluting, and asked puzzledly, "There will be something I don't understand at the end, and I ask the prince to solve my doubts." ”

Li Yunze, who squinted his eyes and hugged his arms, gently spit out a word." ”

"This Liaodong City has been surrounded, why don't you fight?"

Xue Rengui really didn't understand this, "The location here is important, and the city area is large enough, if you live in the city after taking it, it will be better than outside." ”

After thinking about it, he explained, "Don't blame the prince, the logistics of the army are very good, and the last general just thinks that it should be better to defeat this Liaodong City, and it is not that it can't be defeated." ”

To the extent of Xue Rengui, he naturally knew the secret of Tang Jun's gunpowder.

With gunpowder, no matter how strong Liaodong City is, it is just a matter of using more weight.

But at this time, the main force of the Tang army would rather camp in the wind and snow than attack the city, which made the young Xue Rengui incomprehensible.

Li Yunze, who didn't raise his eyelids, asked casually, "Do you read the art of war?" ”

Xue Rengui was stunned: "I have read it." ”

"Have you ever read what it means to be surrounded by reinforcements?"

"Reinforcements?"

"If you don't attack the important cities that can be captured, either the boss has a problem with his brain, or he is waiting for the arrival of enemy reinforcements."

Li Yunze waved his hand: "When you're fine, don't compete with people all day long, read more about the art of war than anything else." ”

While speaking, coach Li Er, who may have a brain problem, walked out of the back tent wearing a gold armor.

After everyone saw the salute, Li Er immediately said a sentence to clear his suspicion of being brain-dead.

"Zhongqing, Goguryeo's reinforcements are coming!"