After entering the Silla Peninsula, the style of play was different from that in Liaodong, because of the moat of the Yalu River, and Goguryeo was too confident in the front line of Liaodong, and they did not understand the strength of the Tang Dynasty.

Therefore, Datang was able to take the entire Liaodong region in a quick time, and after taking it, because it was related to the logistics of Datang's follow-up stability, Li Shiji spent a lot of time operating the entire Liaodong region.

But after entering the peninsula, it was different, it was located in the hinterland of Goguryeo, and it was an important capital and core area of Goguryeo, and he was not allowed to spend time persuading him to surrender.

Therefore, after Li Shiji crossed the river and rested for half a day, the Tang Dynasty had a total of 150,000 troops and divided into three routes, of which 100,000 troops quickly advanced along the western coastline of the peninsula to Pyongyang, the capital of the entire Goguryeo, while the remaining 50,000 infantry under the leadership of Zhang Liang and Xue Wanjun were also divided into two routes to cross the mountainous area in the center of the peninsula and extend to the eastern mountainous hinterland of Goguryeo.

As the main force of the attack, Li Shiji's department began to soar at a terrifying speed, and all the cities encountered, because the area of these cities was not large, divided into 10,000 troops to besiege the city, shouting! If you don't surrender, then directly use the city mine to blow up the city wall!

If you don't surrender in the event of a blow up of the wall, then attack directly!

Under such circumstances, it turned out that there were very few generals like Khwar, and none of these cities were the elite of Goguryeo.

Under the terrifying bombardment of the broken city mines, the soldiers of these cities have long been frightened, and most of the cities have directly chosen to surrender, and those who did not surrender also collapsed directly under the charge of Datang, and then were occupied again.

At a distance of about 300 miles from the Yalu River to Pyongyang, Li Shiji marched an average of 50 miles a day, and in just six days, he broke through more than 30 Goguryeo counties along the way, and 80,000 troops arrived at the city of Pyongyang!

Yuangai Suwen never thought that the army of the Tang Dynasty would come in such a storm, and on the second day after Li Shiji crossed the river, Yuangai Suwen received the news that the city of black bones was broken.

No matter how unbelievable he is, that's what it is.

At that time, he could only quickly mobilize troops from the surrounding cities, because according to his estimates, it would take at least four days for the Tang army to cross the river!

Based on the calculation of three days, he still has enough time to draw enough troops to defend Pyongyang City, and when the time comes, counting the auxiliaries, he can gather 200,000 troops in Pyongyang, and then wait for the arrival of the Tang army, and then start a battle directly outside the city.

He knew very well that he could not defend the city.

Because once the city is defended, it means that the Tang army has completed the siege, Pyongyang is the most populous city in Goguryeo, although it is not as good as Chang'an City with a population of one million, but Pyongyang may have a population of nearly 400,000, 200,000 soldiers, and 200,000 people when the army is counted.

And how long can Pyongyang's grain be eaten? It can only be supported for a maximum of one month.

But after they were surrounded, it meant that the Tang Dynasty was not in a hurry, because it also represented the last capital of Goguryeo, and the rest of Goguryeo was destroyed, and there were no other enemies.

Datang can completely surround but not fight, calmly gather troops, and directly trap them to death!

Therefore, his best choice is to start a war directly in the field, taking advantage of the fact that the Tang army has just arrived, waiting for work, and taking the initiative to attack. That's the safest way to do it.

But what Yuan Gai Suwen didn't expect was that the Tang army had completely crossed the Yalu River in just one day, counting the rest time, and it also included 40,000 cavalry!

In the subsequent attack, Li Shiji took the cavalry as the lead, attacking a city, first sending cavalry to bypass the city, and release it for at least ten miles, so as to dispel all the scouts, caravans, and mobile people who may leak the news.

In addition, many of the heralds who transferred troops from Yuangai Suwen had even just arrived in the relevant cities, and before they could evacuate, the army of the Tang Dynasty had already arrived.

Therefore, when the Tang army appeared in Pyongyang in six days like heavenly soldiers, the army gathered by Yuangai Suwen was only 100,000!

The troops he originally relied on did not wait to gather in Pyongyang, but were directly eliminated and captured by the Tang troops who arrived from three directions.

And the Tang army that rushed to Pyongyang was even more neat, which made the Goguryeo army camp outside the city, which did not expect the Tang army to arrive for a long time.

Under such circumstances, Yuangai Suvin had to make a choice, that is, to withdraw to the city of Pyongyang, and the field opportunity he envisioned was no longer available!

When the neat Tang army under the city of Pyongyang arrived, Yuangai Suwen, who was standing on the city wall, had an extremely ugly face.

And Gao Jianwu and all the nobles of Goguryeo were even more frightened, and things were ...... How did you get to where you are today?

But now, no matter what they say, it seems that they can't change the fate of Goguryeo.

Everyone knows that the demise of Goguryeo is imminent!

Not only Li Shiji, but Li Daozong's achievements in this direction are also soaring, Cheng Biting Jin, Li Daliang, Niu Jinda, Xue Rengui and other generals have been authorized to take 50,000 screaming Tang soldiers, and even the speed of the attack is wilder than Li Shiji!

The advantage brought by the city breaking thunder allowed them to arrive outside Pyongyang only one day later on the premise that they were originally sixty miles away from Li Shiji!

At this point, the northern and southern armies of the Tang Dynasty met outside the city of Goguryeo Pyongyang! As for Zhang Liang and Xue Wanjun, who were still fighting in the mountains and in the east, they would definitely not be able to catch up with this battle.

But it was enough, because the Tang troops gathered outside Pyongyang had once again reached as many as 150,000!

After the siege of the city, Li Shiji immediately sent the news back to Chang'an City, thousands of miles away, by telegram!

"Hahaha! Good! Good! Good! "Chang'an, Li Shimin, who got the news, laughed wildly three times at the court meeting, he waited too long for this moment, he didn't expect this day to come so soon.

Moreover, the army of the Tang Dynasty completed this national war far faster than Li Shimin imagined! It's only two months before the chosen time to start the war! In two months, he destroyed his cheap old man and mobilized a million soldiers, and he never won Goguryeo in three expeditions!

Destroyed Goguryeo, which has been 678 years ago!

"Congratulations to Your Majesty, congratulations to Your Majesty." The whole dynasty was full of congratulatory voices, and everyone was overjoyed, because it meant that the hinterland of the Tang Dynasty had no enemies in the other three directions except for the west side!

This also means that the hinterland of Datang can start large-scale construction in accordance with the plan of the three provinces, and by that time, Datang will be even stronger!

Li Ke is also very excited, he has changed Datang a lot, but until today, Datang really occupies half of the world now!

Although he didn't know how much impact it would have, it was the most important step for Datang to spread its culture to the world!