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In the eyes of the vast majority of people in this era, as long as the Han people recovered Yanyun and locked the Hu people out of the pass, they could live and work in peace and contentment.

In Li Yan's view, this is very short-sighted.

Some people often compare Li Yan with Tang Xuanzong.

Then this time take Tang Xuanzong as an example.

The Tang Dynasty was a dynasty with unprecedented national strength and an unprecedentedly vast territory in Chinese history.

The Tang Empire has made great achievements in war, and since the founding of the country, it has been actively enterprising, with an iron will, defeating one opponent after another - in the north, clearing the desert north, and making China's prestige as far as North Siberia; in the East, conquered Korea and defeated the Japanese Navy at the Battle of the Baekgang Estuary; In the northwest, the Western Turks were subjugated, so that the Western Regions returned to China again after the Han Dynasty; In Central Asia and South Asia, the Great Defeat of Zhongtianzhu, the Expedition of the Little Bolu and the Great Bolu, and the victory over the Arabs.

By the time of Xuanzong of the Tang Dynasty, the Tang Empire ushered in the second spring - the prosperous era of the Kaiyuan Dynasty.

This was one of the most heyday periods of ancient China, and there was no one.

The prosperity of the era mainly lies in the economy and culture.

If we talk about martial arts, the era of Tang Xuanzong is still not as good as the era of Tang Taizong, Tang Taizong's strategy is a great depth of encirclement and annihilation, if you don't fight, you will have to fight a battle to determine the outcome of the battle, the most important thing is to make a quick decision, not to fight a protracted war.

The strategic pattern of Xuanzong in the Tang Dynasty was not so big, and most of them fell into protracted and bitter battles, or the battle for one city and one pool, or the tug-of-war on the border line, and it was difficult to see the war scene of the early Tang Dynasty.

But despite this, in the early days of Tang Xuanzong, his exploits still did not disgrace his ancestors in the slightest.

In the early days of Tang Xuanzong's wars were very frequent and wide-ranging, with the Turks, Tubo, Khitan, Turgish, Dashi, and Nanzhao all had military conflicts, and almost all of them had confrontations with the surrounding powerful regimes, and almost all of them returned with great victories.

Among them, the greater results were the Battle of the Ping Turks and the Battle for Central Asia.

Different from the Tang Taizong Ping Turks, the Tang Xuanzong Ping Turks relied more on the power of nomadic tribes such as the Hui and other nomadic tribes, and actually used razing to defeat the Turks.

This is a very clever political maneuver.

The battle for Central Asia is the most wonderful chapter in the military history of the Tang Dynasty, the Tang Dynasty, the Great Food, the Turks, and the Tibetan four major forces competed in Central Asia, showing the wisdom of the vertical and horizontal, the climax is repeated, the danger is full of dangers, and it is wonderful.

It can be seen from this that Tang Xuanzong was wise and martial at the beginning.

And yet—

Tang Xuanzong can start well, but he can't end well.

In the later years of Tang Xuanzong, the famous Anshi Rebellion broke out.

Many people put the reason for the outbreak of the Anshi Rebellion on Yang Yuhuan, saying that because Yang Yuhuan seduced Tang Xuanzong, Tang Xuanzong had no intention of ruling the government, and the Anshi Rebellion broke out, which also created a shame flower for one of the four beauties in ancient China.

Actually, this is wrong.

So many emperors of the Ming Dynasty did not go to court for a long, long time, and their rule lasted for many years.

The Qing Dynasty was invaded by foreign peoples, and its rule also lasted for many years, and if it did not catch up with that great era, it would probably last for many more years.

Therefore, the reason for this is still in the system.

The reason why the Tang Dynasty before Tang Xuanzong was strong was because the Tang Dynasty during that period firmly controlled the two plains, namely the Central Plains and the grassland, and it can also be said that the Tang Dynasty before Tang Xuanzong was a dual empire.

In the period of Tang Xuanzong, it may be because Tang Xuanzong was too "wise and martial" at the beginning of his ascension, a little fluttering, or he was bewitched by those civil servants, he actually took the initiative to give up the grassland.

As a result, the grassland was out of the control of the Tang Dynasty.

Eventually, it led to the Anshi Rebellion.

As another example, let's take an example that is closely related to Li Yan.

That was the fall of the Jin Dynasty.

It is known to the world that the Jin Dynasty died in Mongolia.

But many people don't know how Mongolia rose under the control of the Jin Dynasty?

The reason why Mongolia could rise was because the emperor of the Jin Dynasty, like Tang Xuanzong, gave up the steppe himself, which led to the rise of Mongolia and finally destroyed the Jin Dynasty.

To be specific, the emperor of the Jin Dynasty repeatedly sinicized, first moved the capital from Shangjing to Yanjing, and then moved the capital from Yanjing to Bianliang, Tokyo, and finally completely gave up control of the grassland, and then the Mongols rose and destroyed the Jin State.

Of course, there is an inevitable reason for the Jin Dynasty to move the capital, that is, the military aristocracy of the Jin Dynasty has too much power, and they firmly limit the imperial power of the Jin Dynasty, so several emperors of the Jin Dynasty have to Sinicize and have to move the capital to the south, so as to get rid of the control of those military nobles of the Jin Dynasty.

In the Ming and Qing dynasties, although the former produced several faint kings who did not go to court for a long time, and although the latter was an invading foreign nation, the rule of its dynasty was unusually long, and it was relatively stable during the period of control, which was largely because they controlled both the Central Plains and the grasslands.

Therefore, if he wants to make the dynasty he established last longer and can withstand some wind and rain, Li Yan must not only sit firmly in the Central Plains, but also control the grassland.

And as long as Li Yan gets this part of the territory south of Enzhou-Enchang to the north of Yanyun, he can put his hand into the grassland and have a grassland vision, and then Li Yan can take advantage of and manipulate the tribal contradictions on the grassland, divide and rule, and control the grassland, which will not give Mongolia and Jurchen a chance to destroy their own country.

Therefore, Li Yancai insisted on this overlord treaty.

What Li Yan wants to do, who can stop it?

Soon, the Sino-Financial Peace Treaty was officially put into effect.

Soon after, the Jin army withdrew from Yanjing, and Dazhong fully recovered the Yanyun region.

Immediately afterwards, Yue Fei, Liu Qi, and Wu Jue personally led the 25th Army to escort the Jin army to retreat to Chifeng Mansion (Li Yan changed the name for Dading Mansion), forcing the Jin army to deliver Chifeng Mansion as soon as possible - Dayou, "If you don't deliver it, we will grab it ourselves".

Forced by the strong pressure brought by the Chinese army, and also forced by the current acute situation in the Dajin Kingdom, in less than June, only in mid-May, the Jin people withdrew from Chifeng Mansion and handed over Chifeng Mansion to Liu Qi.

But this was not over, Yue Fei and Wu Jue then continued to lead their troops north.

How could the high-level officials of the Jin Kingdom not know that Yue Fei and Wu Jue's move was to force them to deliver the promised gold and silver as soon as possible?

Soon after, a large-scale civil strife broke out in the Jin Kingdom, but fortunately, Wan Yan Xian also led his troops back in time to suppress the rebellion.

Soon after this rebellion, the Jin State handed over all the war reparations and annual coins that should have been delivered, and China and Jin also officially submitted their credentials, and the two sides ceased their troops and lived in peace for the time being.

Everyone knows that the peace between China and Kinawa is temporary, and when the two sides are ready, they will have to fight again.

In other words, the two sides could start fighting again at any time.

And the first to break out of the war must be Chifeng Mansion, which is located between the two countries and at the intersection of Mongolia, Hebei and Liao.

Therefore, Chifeng Mansion has become very important, and non-fierce generals and capable officials cannot guard here.

After Li Yan screened and selected a group of civil and military forces under his command, he personally appointed Liu Qi as the envoy of Chifeng Jiedu to guard Chifeng, and appointed Chen Yu as the prefect of Chifeng, and the two of them guarded the northern border for Dazhong.

Li Yan's selection of Liu Qi and Chen Yu to guard Chifeng Mansion is both reasonable and unreasonable.

Liu Qi is steady and good at fighting, and it is naturally appropriate for him to guard Chifeng Mansion, but in fact, there are people who are more suitable than Liu Qi to guard Chifeng Mansion, and this person is Yue Fei, who has made the most contributions in the process of recovering Yanyun.

And yet—

I don't know why, Li Yan chose Liu Qi and not Yue Fei.

As for Chen Yu.

In terms of ability, Chen Yu has absolutely no problem.

But the problem is that Chen Yu turned out to be Song Chen, and he only voted for Dazhong not long ago.

Is there really no problem with appointing such a person to be stationed in such a critical place?

Liu Qibi is not more suitable than Yue Fei to guard Chifeng Mansion, whether Chen Yu has any problems, this will have to wait for later, because this appointment will soon be settled, and there is no suspense.

Compared with Chifeng Mansion, the people of Dazhong are now more concerned, who will guard the more important Yandi?

You must know that this is the real guarantee of the safety of the Han people, and there is no room for error!

There is a lot of speculation about this.

And the most guessed thing is that Yue Fei came to guard Yandi, which can also explain why Liu Qi and not Yue Fei came to guard Chifeng Mansion.

I don't know why, but Li Yan didn't give the order for Yue Fei to guard Yandi for a long time......

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