The messenger came from the Goguryeo, and Hou Junji had to be more vigilant.

The messenger said, "Grandpa Guo, this is a secret letter, please translate it yourself." ”

Hou Junji took out the code book and translated it.

Hou Junji read the letter by the light of the torch, and could not help but be overjoyed, and he said: "Brothers, good news, there is no need to fight. The Goguryeo people surrendered. ”

The soldiers couldn't believe it for a while, but no one spoke up.

Hou Junji had no choice but to say: "The emperor said in his letter that the Goguryeo people had been defeated in Pyongyang and had surrendered to the Tang army. ”

The soldiers cheered.

Hou Junji appointed Hou Yingjie, commander of the 6th Division, to temporarily act as his commander and stay in Nampo City, where he went to Pyongyang under the escort of a cavalry regiment.

It turned out that in his letter to Li Shimin, Li Su put forward two opinions on solving the Goguryeo people.

One is to defeat the main force of the Goguryeo people no matter what, and not give them a chance to breathe. The conditions of not accepting land reparations and paying tribute to vassals must be accepted, and the power of the Goguryeo people must be completely eradicated. It is estimated that this article cannot be negotiated by negotiations.

The second is to allow Quangae Suwen to lead no more than 100,000 Goguryeo troops to leave the Korean Peninsula, and he can send them to the Japanese archipelago, so that they can defeat the Japanese slaves and claim the throne there.

The first does not need to be explained. The second is well-intentioned.

Li Su checked the relevant information and knew that Quangai Suwen was a person with a strong desire for power, and he would not agree to let him give up his power and surrender and be an idle nobleman, he would rather fight with the Tang Army to the end, and the fish would be dead. This will cause great casualties to the Don army.

Under the strong pressure of the Tang army, leaving him a way out, let him go overseas to claim the king, and fulfill his desire to be an emperor, he may accept this condition.

Li Su did this with his considerations. The Japanese slaves were the old enemies of the Han nation and must be curbed as soon as possible.

The Goguryeo people entered the Japanese archipelago, and the Unu exterminated the Goguryeo people, and they would also suffer huge losses. The Goguryeo defeated the Users and established a regime, which would not be very stable due to the fact that they were a minority in the Japanese archipelago. In the future, the Datang Navy will be well developed, and it will be very convenient to conquer.

Before the Eastern Crusade, Li Shimin and others had thought of various solutions, but no one could think of the second one.

Sure enough, when Li Shimin negotiated with Quan Gai Suwen, Quan Gai Suwen put forward a request to be a vassal to Li Shimin and pay tribute every year. Li Shimin disagreed.

Li Shimin asked Quangai Suwen to surrender and promised to give him the title of county king, but Quangai Suwen really disagreed. He said that if this is the case, he would rather fight to the death with Tang Jun, and fight to the death to break the net.

As a result, Li Shimin put forward to him the second and second suggestions put forward by Li Su.

Sure enough, Quangai Suwen was tempted, Quangai Suwen had an imperial complex, and he was already a supreme minister in Goguryeo. However, he was not satisfied, and thought that he could be king.

In the current situation, although the path pointed out to him by Li Shimin is risky, it is much better than being wiped out by the coalition forces, or just being a powerless and powerless apartment.

As for the situation in the Japanese archipelago, Izumi Gai Suwen is still relatively clear. At this time, the Japanese archipelago had a population of about 3.5 million, but it was scattered on many islands and divided into dozens of small countries, the largest of which was the Japanese slave country centered on Nara on the island of Honshu, and the army of the whole country was only a few tens of thousands.

If 100,000 well-equipped Goguryeo troops could be transported at one time, it would be entirely possible to defeat the Japanese slave states and unify the Japanese archipelago.

Quan Gai Suwen thought twice and decided to accept Li Shimin's suggestion. He put forward several conditions to Li Shimin:

First, he was going to take 100,000 troops and their families, and 5,000 craftsmen.

Second, they should be escorted to the Japanese archipelago by the Tang Army, leaving him with a small number of naval vessels.

Third, the Tang army supported them with some weapons, including 1,000 Mo knives, 2,000 longbows, and enough food and other supplies for them to consume for half a year.

This requirement is really nothing in exchange for the whole of Goguryeo. In addition to the people, Li Shimin was generous and doubled the materials that Quangai Suwen asked for.

The matter was settled in this way, and Li Shimin hurriedly sent someone to inform Hou Junji in Nanpu City.

With the cooperation of Jeon Gai Suwen, the Tang army successfully took over Pyongyang, and then the entire territory of Goguryeo.

Li Shimin appointed Zhang Xuansu, who had returned from Linyi, to serve as Goguryeo's Xuanfu envoy. Niu Jinda, a general of the Tang Dynasty, was appointed commander of the Korean Military Region, leading 120,000 Tang troops to garrison the Korean Peninsula.

On May 10, 941, Jeon Gai Suwen led the Goguryeo army to the Japanese archipelago.

Not only the Tang Dynasty navy and the captured Goguryeo navy were transported, but even the Silla and Baekje sailors voluntarily participated in the transportation procession.

The Tang Dynasty dispatched Hou Yingjie's Sixth Infantry Division, and Qin Huaidao sent an artillery squad carrying two cannons to cooperate with them. Silla and Baekje each sent 10,000 horses and marched with the Goguryeo army.

The Tang Dynasty, Silla, and Baekje all sent troops voluntarily. They were nominally fighting with the Goguryeo army. But their actual purpose was to go to the Japanese archipelago to rob gold, silver, treasure, and beautiful women, and to make a fortune.

Usually let any of them do this kind of thing alone, they don't have the ability and the opportunity.

After arranging everything, in mid-May 941, Li Shimin began to return to the court.

The Tang Dynasty's war against Goguryeo was a great victory. He not only washed away the shame of the defeat in the Goguryeo War since the Sui Dynasty. It also recovered the Liaodong region lost by the Sui Dynasty and occupied the entire territory of Goguryeo.

Datang's territory has increased by more than 2.7 million square kilometers and its population by 6.5 million.

By May 941, the total population of the Tang Dynasty, including the number of new births over the years, had increased to 29.7 million, and the territory area reached 12.8 million square kilometers.

The total population, as well as the land area, refers to the territory and population under the direct control of the Tang Dynasty, excluding the subject states.

Li Shimin was very excited. In addition to the population, the country's political, economic, and cultural development has surpassed that of any emperor in Chinese history. He has really fulfilled his dream of being an emperor for the ages.

Of course, this is just the beginning.

The war of the Eastern Expedition to Goguryeo was won, and the subjects of the Tang Dynasty were very excited.

Chang'an City was decorated with lights, ready to welcome Li Shimin and the army in triumph.