Although Goguryeo was defeated, it was not easy for the Tang Dynasty to rule this vast land, and the most critical factor was the population, to be precise, the number of the Han population, although there were Han people living in Goguryeo before, but compared with other ethnic groups, the number was not dominant, and the population was the foundation of ruling a region, which was also the biggest problem in Liaodong.

Li Shimin wants to garrison troops in Liaodong for a long time, and the biggest problem is that the population of Liaodong cannot support too many garrisons, especially the small population of the Han nationality and the number of other ethnic groups, which will also lead to conflicts between ethnic groups.

"What you said is also reasonable, but although the population of Liaodong is a little less, it is not impossible to change, for example, now the population in the Central Plains has exploded, and even the fields are not enough, so can we find a way to move some people from the Central Plains?" After listening to Li Xiu's discussion on the population of Liaodong, Li Shimin immediately put forward an idea again.

According to the regulations of the Tang Dynasty, all men in the prime of life can be divided into 20 acres of Yongye field, and there are also 80 acres of mouth field, of which Yongye field can be passed on to children and grandchildren, and the mouth field will be returned to the court after his death, and the elderly and women can also get a certain amount of land, mainly because of the war at the end of the Sui Dynasty, the population was greatly reduced, and a large number of fields were barren, so it was necessary to divide the fields to the people to promote them to cultivate, so as to ensure the output of grain.

However, with the founding of the Tang Dynasty to the present, more than 20 years have passed, and the imperial court encourages childbirth, resulting in a large increase in the number of people, and more and more fields are naturally allocated.

"Relocating the population is indeed a good way, but the key is the method of migration, such as the Central Plains has a large population and a relatively rich life, in contrast, although the land here in Liaodong is fertile, it is very desolate, especially the winter here is long, and the land can only be planted for one season, so if there are not enough conditions, I am afraid that no one will be willing to move from the prosperous land of the Central Plains to a desolate place like Liaodong." At this time, Li Xiu asked in a more difficult way to solve.

People have the instinct to seek advantages and avoid disadvantages, although the Central Plains has a large population, but also very prosperous, not to mention that this is their hometown where they grew up, if they want to leave their hometown to go to other places, either natural and man-made disasters occur, forcing them to leave to make a living, or the court sends people to force them to leave, but both will cause social instability, and even threaten the rule of the court in serious cases.

Li Shimin couldn't help frowning when he heard Li Xiu's words, and he didn't speak again for a long time, but at this time Li Xiu spoke again, "Your Majesty, even if you can move people from the Central Plains to Liaodong, it is not a year or two to see the effect, and if the imperial court has stationed a large number of troops in Liaodong for many years, it will also drag down the finances of the imperial court, and if the army is withdrawn, Silla may have some changes, so in the minister's opinion, the easiest and most effective way is to let Silla fall into another battle, so that it is impossible to take care of the land of Liaodong, At that time, we can also calmly arrange the relocation of the people. ”

Hearing that Li Xiu finally turned to the matter of Silla, Li Shimin finally raised his head and asked, "Then in your opinion, how can you make it impossible for Silla to covet the land of Liaodong?" ”

"It's very simple, the three kingdoms of Liaodong are now left with Silla and Baekje, although Baekje is weaker, but with the support of our Tang Dynasty, he will naturally have the ability to fight with Silla, and the two countries are originally feuding, and Silla has robbed Baekje of the richest land, so as long as Baekje has the ability, it will definitely fight with Silla endlessly!" Li Xiu smiled indifferently at this time, although it is not very glorious to provoke a war between the two small countries, but for the benefit of the Tang Dynasty, the life and death of these small countries can only be put aside.

Li Shimin once again showed a contemplative expression when he heard this, and after a long while, he spoke: "I understand what you mean, but this matter is very important, so we also need to think about it in the long run, and wait until we return to Chang'an, and then discuss it carefully with Wuji and them, and then make a decision!" ”

"What Your Majesty said is very true, but this time the Queen of Silla came to see Your Majesty, she will definitely try her best to take some advantage from Goguryeo, and at that time, please be wary of Silla and never agree to their request easily." Li Xiu immediately spoke again.

Li Xiu was not surprised by Li Shimin's cautious attitude, after all, such a big matter as stabilizing Liaodong also needs to be discussed in the court before a decision can be made, and his purpose is not to let Li Shimin do it to Silla now, as long as Li Shimin can be wary of Silla, then he will succeed.

"Hehe, I'm not a three-year-old child, so naturally I won't easily agree to Queen Silla's excessive requests, don't worry!" When Li Shimin heard Li Xiu's words, he couldn't help but smile again, he didn't think that he would give up the land he had worked so hard to Silla , of course, Silla also contributed some strength in this war, and he would also give Silla some rewards at that time, which was inevitable.

Hearing Li Shimin say this, Li Xiu relaxed a little, and then discussed with the other party about sending troops tomorrow, he was in charge of logistics, and now Pyongyang has become the material transfer center of Datang, so he also needs Li Shimin's support, in addition, Li Xiu also suggested that Cen Wenwen should take over his original position, in charge of the dispatch of materials, after all, the other party is his old subordinate, and the two sides cooperate more tacitly.

However, Li Shimin was still a little worried about Qin Qiong's troops, so he also told Li Xiu a lot of things, and he also agreed to them one by one, it is estimated that Li Shimin must have said similar things to Cheng Yanjin, and even at a critical moment, Cheng Yanjin still has the right to take back the military power in Qin Qiong's hands, so as to ensure that the army can continue to complete the task when Qin Qiong makes a mistake or encounters physical problems.

Early the next morning, Qin Qiong, Cheng Yanjin and Li Xiu led the army to set off, and Li Shimin also personally went out of the city to see him off, and then in the eyes of everyone, the 30,000 army slaughtered the pill capital city in the north.