When the strategic goal is determined, the tactical problem is easily solved.

Seo Se-yang's staff believed that in order to force the king of Goryeo to submit, it was necessary to capture this guy who had never spared the power of the people, preferably with his heir and the main members of the two classes.

If you can do this, you are not afraid that Goryeo will not give in.

As for the plundering of Goryeo's population and wealth, it was necessary to annihilate the main force of the Goryeo army as much as possible, and then divide the forces to attack as wide a range of land as possible, so that it would be easier to collect people and supplies.

The goal of it all, and the most important tactical move, is to be fast!

It is necessary to do as fast as possible and not give the king of Goryeo time to escape!

Therefore, the Qi army did not hesitate any longer, and on the 28th, the army took three field brigades of Pingyuan, Jiyuan, and Weiyuan, plus trapped camp troops and some dragoons, a total of 7,000 people as the southern route army, with Gongsun Sheng as the commander, and moved along the south bank of the Han River.

With the three field brigades of Jingyuan, Jingyuan, and Zhiyuan, the Chinese Army Guard, and the Blue Army Brigade with a total of 7,500 people as the core, Xu Shiyang personally served as the commander, and acted along the north bank of the Han River.

In the middle of the Han River, there were 33 small flat-bottomed boats under the navy that were suitable for inland navigation as the main force, and the three-way army advanced by land and water, and quickly marched towards Goryeo Wangjing.

At this time, there was chaos in the capital of the king of Goryeo, and the king of Goryeo had just learned that it was not the Japanese who attacked from the sea this time, but the Qi army who had written to reprimand Jin the most!

However, although he was not a Japanese robber, as long as he was not a tartar who wanted human life, the king of Goryeo thought that he still had the strength to fight - after all, everyone was beaten hard by the Jurchens, didn't they?

It is also quite strange that the lonely king of Goryeo has not been aware of the achievements of the Qi army in the previous years.

However, there was always someone who understood in both classes of nobles.

Some Goryeo nobles who had been to Liaodong knew very well that in recent years, the Jurchen Tartars had never achieved any advantage in the face of the rising Qi army.

However, more aristocrats believed that it was only because the Jurchens were careless.

At this moment of great enemy, the kingdom of Goryeo once again launched a dazzling party struggle.

For example, the Beiren Party in the two classes believed that an agreement should be reached with the Qi army as soon as possible, even if it was for the king to be a vassal of the Great Zhou Emperor, who had been a vassal of the Great Zhou for decades.

However, the Westerners were in the need of party struggle, and constantly emphasized the dignity and authority of the king, believing that the king should not compromise with the Zhou people who also claimed to be Jurchens, not to mention that this attack was still a subsidiary of the Great Zhou.

The quarrel continued, but no one mentioned how to resist the offensive of the Qi army, but the king issued a soft decree asking Gyeonggi Province to gather forces to prevent the Qi army from advancing towards Wangjing.

As a result, the time that belonged to the Kingdom of Goryeo passed rapidly.

On the first day of December in the second year of the Great Zhou Longdao, the Qi army of the South Road conquered the important town of Tongjin, and the next day they conquered another important town on the Han River, Gimpo.

On the same day, Suh Se-yang's main force defeated the first Goryeo King Army, an armed force of about 2,000 men cobbled together by the Goryeo troops of Gyeonggi Province and the monks of nearby Buddhist temples, on the north bank of the Han River.

The 7,500 Qi army annihilated this force in only one hour, killing more than 500 opponents and capturing more than 1,200, with only a few survivors scattered.

On the third day of the twelfth month, the Qi fleet carried more than 300 marines, took advantage of the night to sneak attack, and captured Yanghwajin on the south bank of the Han River in one fell swoop, which was only more than 30 miles away from the royal capital of Goryeo!

At this point, the king of Goryeo, Yi Liangcai, felt for the first time that the situation seemed to be a little bad.

Within the Kingdom of Goryeo, Kim Sang-heon, the Great Priest (equivalent to the Imperial Historian of the Great Zhou), who advocated a death battle with the Qi army, and his brother Kim Sang-young, the right-hand ruler (equivalent to the Jae-ju of the Great Zhou), vigorously recruited rebels and monks in Gyeonggi-do to prepare to cooperate with the regular troops.

However, the Qi army's actions were too fast, and when the main force of the Goryeo army had not yet been assembled, Xu Shiyang personally led the Northern Route Army to launch a fierce attack on the Goryeo army assembled outside the west gate of Wangjing.

The Qi army, with the support of artillery, gathered all the reconnaissance cavalry and dragoons and launched a surprise attack on the flank of the Goryeo army.

After their long-range firepower was suppressed, the short spears and short knives naturally could not block the iron hooves of the cavalry, and the cavalry of the Qi army simply gave up the traditional tactics of dismounting and shooting on foot, and directly stepped into the formation, and broke the formation in one fell swoop.

The Goryeo army completely collapsed, more than 30 major officers were killed, more than 20 generals were captured, Kim Sang-young, who went out of the city to supervise the battle, in order to avoid being captured and humiliated, committed suicide by swallowing medicine when the army collapsed, the Goryeo army lost more than 5,000 people, and the main force of Gyeonggi Province has completely dissipated.

The battle took place outside the Gyeongseo Gate of the Goryeo king, and the Goryeo king Yi Liang and most of the nobles of the two classes witnessed the scene of the main force of the Goryeo army being defeated in two quarters of an hour.

This was undoubtedly a very realistic and shocking education for them, and that night, the king of Goryeo, who had several escapes for his life, did not hesitate to lead several maharajas (princes), princesses, and a few groups of nobles and high-ranking nobles out of the city through the south gate, trying to escape to Namhansanseong.

However, the Qi army moved much faster than them, and the Southern Qi army, under the command of Gongsun Sheng, captured the mountain fortress of Nanhan in one fell swoop in the early morning of the fourth day of the first lunar month.

This fortress, which was theoretically supposed to have 16,000 defenders, was actually garrisoned by less than 1,500 men, and, as Jin Yun said, in the eyes of the Han Chinese, it was simply an unfinished low wall, lacking not only the cover of the battlements, but also the few shelters for the defenders to rest.

When Gongsun Seung invaded Namhansanseong, he was shocked to find that although the fortifications had not been completed, the palace of the king of Goryeo had been built in a luxurious manner and had been completed .......

When the king of Goryeo arrived near the mountain fortress of Namhan, he found that the "fortress" they had relied on to escape had fallen, so the fleeing party was forced to return to Wangjing by the Qi cavalry.

In order to annihilate the main force of the Goryeo army as much as possible, Xu Shiyang ordered the cavalry not to force too much, or directly destroy this easy target, just drive the Goryeo king back to Wangjing.

On the fifth day of the first month, the main force of the Qi army arrived, and 15,000 naval and army soldiers completed the siege of Goryeo Wangjing.

On the same day, the Qi army set up camps around Wangjing and blocked all the city gates, but left many gaps in the city walls.

Thinking that they had found an opportunity, the Goryeo army immediately sent dozens of warriors to use hanging baskets to break down the city wall, sneak through the blockade line of the Qi army at night, and go to each province of Goryeo with the will of the king of Goryeo, "King Badaoqin", and gather reinforcements.

Xu Shiyang deliberately let go of the messenger of the Goryeo, just waiting for an opportunity to encircle the point and send reinforcements.

Now that he has the king of Goryeo in his pocket, he doesn't need to be in a hurry to attack this fragile city.

On the eighth day of the first month, Xu Shiyang ordered a field army of 10,000 people, with a team of 100 people, accompanied by two Goryeo guides, to disperse and launch a large-scale raid on the entire Gyeonggi Province of the Goryeo Kingdom.