The party fled, Goryeo was destroyed, the Jurchens were also pacified, and the north no longer had the power to influence the Song and Liao, which made the two countries also focus all their attention on each other, and the first to do it was the Great Song Dynasty, with the development of the attack strategy, the Great Song Dynasty took the initiative to send troops from the northwest and Hebei directions to harass the Liao border, and even sent a small force of troops into the territory of the Liao State.

After all, the national strength of the Tang Dynasty was much stronger than that of Goguryeo at that time, so the Tang Dynasty consumed it, but Goguryeo could not afford to consume it, and finally Goguryeo was tortured by the Tang army with only one breath left, which allowed Gaozong Li Zhi to destroy Goguryeo in one fell swoop.

The current Great Song Dynasty has also adopted the same exhausting strategy, this is a dignified and upright Yang strategy, although the Liao State has seen through the plan of the Great Song Dynasty at a glance, but there is no solution at all, after all, the initiative is in the hands of the Great Song Dynasty, the other party wants to fight if they want to, and they can only respond passively.

Among them, the northwest direction is better, there is an endless grassland, even if the Great Song Dynasty sends troops, there are grassland people in front of it, it is difficult to hurt the heart of the Liao State, at most it is to make some grassland tribes centrifuge from the Liao State, but for those grassland people who have no loyalty to speak of, the Liao State did not pay much attention to it.

But the direction of Hebei is completely different, since the Great Song Dynasty occupied Yanyun and repaired the Great Wall defense line, the Liao army was completely blocked out of the Great Wall, while the Song army could kill the Great Wall from several directions, and the opposite side of the Great Wall defense line is the heart of the Liao State, and it is also the richest area of the Liao State.

Liao is located in the northeast, the winter is relatively long, so the closer to the south, the more suitable for the cultivation of grain, before Yanyun did not lose before, Yanyun is the granary of Liao, and then Yanyun lost, the area north of Yanyun has become the most important area of Liao, but now it is directly exposed to the threat of the Song army.

Of course, the Great Song Dynasty also knew the weakness of the Liao State, so every spring and autumn, it would organize troops to kill from Gubeikou and other places, and when it encountered the population, it would be plundered back to the Great Song Dynasty for resettlement, and the fields would be destroyed by them, and they would also try to avoid direct combat with the Liao army, and always leave with one touch, which also made the Liao army tired.

The continuous loss of population and the destruction of fields made the Liao State even have a food shortage, and even some Liao people who did not have enough to eat ventured to flee to the territory of the Great Song Dynasty, but the Liao State had no choice but to watch itself weaken day by day.

For five years, the Great Song Dynasty has continuously sent troops to weaken the strength of the Liao State in the past five years, and the Liao State can only support it, but it cannot prevent the rapid decline of its own strength, and even the Goryeo side has been constantly resisting, many times it is supported by the Great Song Dynasty behind the back, which also makes the Liao State fall into the quagmire of Goryeo and cannot get out.

In contrast, the Great Song Dynasty has developed rapidly in the past five years, and the Western Song Dynasty was annexed by the Great Song Dynasty, and the Yellow Head Hui also begged to be attached, so that the Great Song Dynasty finally completely opened up the passage of the Western Regions and extended his hand to the Western Regions again.

However, Li Yuanhao took Qiuzi as the foundation, and worked hard to annex most of the land of the Eastern Qarakhanid to the west, and now he has become the overlord of the Western Regions, and the Great Song Dynasty has not been able to transfer the army to the Western Regions for the time being, which also makes Li Yuanhao not have to worry about the threat of the Great Song Dynasty at all, and it is said that Li Yuanhao also intends to develop westward, and even invaded part of the territory of the Seljuk Empire.

Compared with the Western Regions, the achievements of the Great Song Dynasty in the sea are greater, before overseas was only some private activities of maritime merchants, but since the Great Song Dynasty court intervened in this kind of development, the entire South Seas have become the back garden of the Great Song Dynasty, countless Song people went south by boat, looking for wealth and opportunities in the islands of the South Seas, and the news of people getting rich came out almost every day.

However, the natives of Nanyang are a trouble, especially many natives are not civilized at all, and even retain the bad habit of cannibalism, and I am afraid that only saints can educate these natives, so the Great Song Dynasty can only send them to see the sages, hoping that the sages can change to vegetarianism for these meat-eating guys.

In addition to the natives, the biggest threat to Nanyang is its harsh climate, as well as a variety of epidemics, at this time it was used in the medical school, this Li Zhang founded the medical teaching institution after these years of development, for the Song Dynasty to train countless doctors, but also in various places to establish branch campuses, at the same time they also undertake to overcome some incurable diseases of the research, many of the diseases that were previously regarded as terminal diseases now have a solution, and the modern medicine of later generations has also begun to integrate traditional Chinese medicine, so that the development of medicine is also very fast, It has even influenced other disciplines, such as biology, chemistry, and so on.

In fact, the gold and spices of the South Seas are not the most important, the land in the South Seas is fertile, especially suitable for planting rice, in addition to a variety of tropical unique cash crops, and a large area of land can also allow more Song people to immigrate, greatly relieving the land pressure of the Great Song Dynasty, especially the problem of land annexation, there is a good solution, after all, there are few people in the land now, many landlords simply cannot find enough tenants, and there is no output without tenant land, so that the price of land has also fallen greatly.

And with the expansion of the territory, redundant officials have long been not a problem, and even there are not enough officials, of course, the conditions of Nanyang are worse, many officials are reluctant to go, but the Great Song Dynasty began to relax some conditions, promote some officials to Nanyang as officials, as long as a certain number of years, they may be transferred back from Nanyang, which also greatly stimulated the motivation of some people.

In addition, Li Zhang has spared no effort to promote overseas customs and customs in newspapers over the years, which has also stimulated many people's enthusiasm for exploring the outside world, especially some young people, who are unwilling to be bound by their families, so overseas has become an opportunity for them to get rid of home control, and even some young scholars have devoted themselves to overseas, even if they do not participate in the imperial examination, but they have served as officials overseas for several years, as long as they perform well, it is easy to enter the officialdom in the future.

The development of the South Seas and the Western Regions has made the trade routes of the Great Song Dynasty on the sea and land have all been opened, relying on the productivity of the Great Song Dynasty far beyond that of other countries, all kinds of commodities continue to be shipped to Central Asia, West Asia and even the Mediterranean, and the various routes are full of the figure of the Great Song Dynasty merchant ships, and even Li Zhang is already planning to organize a round-the-world voyage, as long as he is willing to pay, there must be someone willing to participate in this feat that is destined to go down in history.

However, before the formation of the round-the-world voyage, there was still an extremely important matter on the agenda, that is, the grievances between the Song and Liao countries that had been entangled for hundreds of years were also time to be resolved.