In July of the ninth year of Xuande, under the leadership of Timur, the third-class Fengtian Yiyun Tuicheng Yongwu Bomeng, 50,000 Jurchen soldiers crossed the upper reaches of the Yalu River under the banner of recovering the lost territory and entered the territory of Jianzhouwei, and fought a fierce battle with the 90,000 troops of the six northeastern towns of Kim Zongrui, the commander of the Hamgyong Province of the Korean Kingdom.

At the same time, the Liaodong Military Region also concentrated 60,000 troops to cross the Yalu River from the lower reaches of the Yalu River in the name of inspecting the eastern territory of the Yalu River in the Ming Dynasty, forcing the Korean Kingdom Pyongan Province to retreat without a fight, and led 70,000 Korean soldiers from the four northwestern counties to urgently retreat and retreat to the borders of the Pyongan Province of the Korean Kingdom in the early Ming Dynasty.

After more than three months of fierce fighting, at the end of October of the ninth year of Xuande, Jin Zongrui was defeated by Meng's brother Timur, and had to lead more than 60,000 remnants of the army to retreat and retreat to the border of Hamgyong Province, the Korean kingdom in the early Ming Dynasty, like Choi Yunde.

At this point, Da Ming Shun lì recovered the territory east of the Yalu River that had been occupied by the Joseon Kingdom one after another, causing the northern defense line of the Joseon Kingdom to retreat sharply.

Among them, the northern defense line of Pyongan Province of the Kingdom of Korea retreated from the Yalu River to the Yongbyon Dadufu in the middle of Pyongan Province, reducing the area of Pyongan Province by half.

The northern defense line of Hamgyong Province retreated from the Yalu River to Hamheungfu Province in the southern part of Hamgyong Province, making the area of Hamgyong Province only 30% of the original area.

After Shun Lì regained the lost territory, the Liaodong Political Envoy and the Nuer Ganbu Political Envoy quickly established the prefecture and county yamen in the jurisdiction east of the Yalu River, and carried out large-scale migration, and the people of the Jurchen tribes continued to come and emigrate.

In the face of what happened on the east bank of the Yalu River, the king of Korea was helpless, and there was no reason to complain to Emperor Xuande at all, and it was obvious that this time the Liaodong Military Region and Mengge Timur's reconquest of the lost territory was carefully arranged, otherwise how could Mengge Timur unite the scattered Jurchen tribes.

However, even so, the king of Joseon still gave Emperor Xuande a complaint of grievances, saying that he was only temporarily in charge of the territory on the east bank of the Yalu River on behalf of the Ming Dynasty, but he did not expect the Jurchens to attack Jin Zongrui's troops indiscriminately, causing heavy casualties to Jin Zongrui's soldiers, hoping that Emperor Xuande would severely punish the barbaric Jurchens.

The reason why Jin Zongrui wanted to fight with Meng's brother Timur in Hamgyong Province was that in addition to Jin Zongrui's main battle, the king of Joseon also pinned his hopes on Jin Zongrui to defeat the Jurchen soldiers led by Meng's brother Timur, so that Emperor Xuande would know that the Korean kingdom was not a soft persimmon.

Unfortunately, Kim Jong-rui, who had high hopes for the Joseon king, had almost twice as many troops as the Jurchen soldiers, but he was ultimately defeated by the fierce brother Timur, making the hopes of the Joseon king come to naught.

Jin Zongrui felt extremely helpless about this defeat, he found that the Jurchen soldiers led by Meng's brother Timur were well-trained and had strong combat effectiveness, and they were no longer the barbarian soldiers who had been beaten by the Korean Kingdom before, and he was sure that those Jurchen soldiers had received the regular training of the Ming army.

Not only that, but the Jurchen soldiers had excellent weapons and equipment and sufficient logistical supplies, which put the army of the Korean Kingdom at a complete disadvantage.

Compared with the Ming army's reconquest of lost territory, the Joseon king was more worried that the Ming army would continue to move south into the hinterland of the Korean kingdom, and the past events of Annam and Champa being incorporated into the territory of the Ming Dynasty can be vividly remembered, and Korea will fall into a comprehensive passivity.

However, it was very fortunate that the Ming army and the Jurchen soldiers did not stop moving forward after the first reconquest of the lost territory, and did not mean to go south, but stationed on the spot to assist the Liaodong Political Envoy and the Nuer Ganbu Political Envoy to establish the local yamen.

To tell the truth, when the Tatar and Warat combined forces attacked Beizhili, the Korean king who got the news was overjoyed, if the Tatars and Warat captured the Jingshi, then it was very likely to rule with the Ming Dynasty and the Yellow River or the Yangtze River, so that the Korean kingdom could take the opportunity to make profits, and take advantage of the opportunity of the Tatar and Warat to compete with the Ming Dynasty and have no time to take care of the Korean kingdom to expand the territory to the Liaodong and Nuergandu of the Ming Dynasty.

Unfortunately, it backfired, and the king of Joseon could not have imagined that the tide of the war, which had been very favorable to the Tatars and Warat, would take a sharp turn, and finally the Ming Dynasty won the war, which disappointed his expectations.

Therefore, in order to find out the true intentions of Emperor Xuande to the Kingdom of Korea, the King of Korea was ready to take advantage of the ten years of Xuande to pay tribute to the Ming Dynasty to send people to the Ming Dynasty to inquire about the news.

Just when Meng's brother Timur and Jin Zongrui were fighting inextricably in Hamgyong Province, in August of the ninth year of Xuande, an unexpected incident occurred in Nanzhili, which made Emperor Xuande angry and removed a group of generals from Nanzhili and Zhejiang Dusi.

In early August, forty or fifty Japanese invaders quietly entered from Pinghu in Zhejiang, then marched on Hangzhou, where they looted and fled to Chun'an.

Originally, this was just an ordinary incident of raiding by the Japanese and did not have much impact.

But what people didn't expect was that these forty or fifty would-be robbers looted along the way, and after wandering on the road for more than half a month, they actually entered the territory of Nanzhili, burned and looted in Changzhou and Suzhou, causing a serious panic in the local area.

Pursued by the local garrison, this gang of Japanese robbers actually ran to the vicinity of Nanjing City, and as a result, the defenders of Nanjing City were like facing a great enemy, and closed the gates of Nanjing City, and the whole city was in a state of combat readiness.

Later, it was the Xiaowu army stationed at the Longjiang Shipyard that was urgently dispatched, which exterminated this gang of wandering pirates.

After summing up the numbers from all sides, we can know that the Ming army that encircled and suppressed these forty or fifty Japanese invaders had exceeded 20,000 people, and nearly 1,000 soldiers and civilians were killed by the Japanese invaders.

Forty or fifty people swaggered around in Zhejiang and Nanzhili for more than a month, burning, killing and looting all kinds of evil, and the Ming army in Nanzhili and Zhejiang was helpless, watching those Japanese robbers run rampant, which immediately angered Emperor Xuande, and threw those recitals to the ground, he really couldn't imagine that those Ming generals still had the face to invite merit.

At the same time, this also reflects from the side that the training of the Ming army in Nanzhili and Zhejiang is lax, and the morale is low, so that the combat effectiveness is low and the fear of war is mentality.

The Son of Heaven was furious, the consequences were extraordinary, those who were waiting for the imperial court to reward the generals of Nanzhili and Zhejiang Dusi suddenly fell into bad luck, and were removed from office by Emperor Xuande to investigate, and the military cabinet began to investigate the incident under the imperial order of Emperor Xuande, and then a large number of military attachés were involved, which shook the military circles in Jiangnan.

In order to eliminate the plague that had been plaguing the Ming coast, Emperor Xuande summoned the members of the military cabinet, the cabinet and the six Shangshu to come to discuss the matter, preparing to vigorously crack down on the Japanese to ensure the safety of the southeast coast of the Ming Dynasty.

Although Li Yuntian was not a member of the military cabinet, Emperor Xuande issued a royal order after ending the war with Tatar and Warat, allowing Li Yuntian to "have the right to do things in the military cabinet", which means that although Li Yuntian is not a member of the military cabinet, he has the same power as a member of the military cabinet.

Originally, with Li Yuntian's merits and prestige in the army, he was completely able to serve as a cabinet member of the military cabinet, but in this case, Li Yuntian had to give up his post as a military officer, because according to the regulations, the cabinet members of the military cabinet could not command the army.

Emperor Xuande not only wanted Li Yuntian to enter the military cabinet to participate in military affairs, but also wanted Li Yuntian to continue to train the Ming Dynasty, so he thought of a compromise solution, that is, to give Li Yuntian a title of "Quanjun Cabinet Affairs".

Anyway, everything in the world is decided by Emperor Xuande, and since Emperor Xuande said that it is feasible to handle this matter, then naturally no one in the court will say more.

In early October of the ninth year of Xuande, Qianqing Palace, East Warm Pavilion.

For the first time, Li Yuntian participated in the highest-level court meeting of the Ming Dynasty as a "cabinet matter of the right army", discussing matters related to the elimination of the Japanese pirates who caused disaster along the coast.

However, Li Yuntian's mind was not on the court discussion, but looked at Emperor Xuande, who was sitting on the warm couch and coughing and looking haggard.

In the past year, Emperor Xuande's health has been very bad, not only the number of coughs has increased but also become more and more intense, according to the news that Li Yuntian has gotten, Emperor Xuande will now cough up blood every day, but the imperial doctor is helpless, and can only recuperate Emperor Xuande's dragon body with all his might.

In Li Yuntian's view, if Emperor Xuande's illness cannot be effectively suppressed, then the consequences will be unimaginable, and the Ming Dynasty will enter a very delicate period, after all, the crown prince is only seven years old now, and he will not be able to take on the heavy responsibility of taking charge of the Ming Dynasty at all, and many unexpected things will happen at that time.

In the view of Zhang Fu, Yang Shiqi, Jian Yi and others, if we want to clear the Ming coastal area, then it is necessary to sweep the strongholds of the Japanese on the sea, so that the Japanese can not sail far.

The Japanese strongholds included the Japanese islands of Tsushima, Iki, Hirado, and Goto Islands, as well as the Great Ryukyu, Lesser Ryukyu, and Qiongju, plus some islands off the coast of the Ming Dynasty and the Kingdom of Korea.

It is worth mentioning that in the early period, the Japanese pirates were mainly Japanese pirates, and their main scope of activity was the sea area of the Goryeo Kingdom, which was subject to the Yuan Dynasty.

This was due to the fact that the Goryeo army massacred the inhabitants of Tsushima, Iki, Matsuura, and the Goto Islands during the two conquests of Japan by Kublai Khan, the emperor of the Wonsejong Kingdom.

In doing so, it was possible to recapture the islanders who had been captured by the Goryeo army, and on the other hand, to plunder the grain of the Goryeo kingdom to compensate for the weakening of agriculture due to the destruction of the Goryeo army.

For this reason, the later Kingdom of Korea referred to the Japanese people on Tsushima Island, Iki Island, and Pingdo Island as "Mishima Wako" in historical documents.

In other words, the Wako were created during this period to take revenge on the Goryeo Kingdom.

With the prevalence of trade between the Ming Dynasty and Japan, and the opening of trade between Tsushima and the later Kingdom of Korea, the early Japanese invaders gradually declined.

The late Wako refers to the pirates who attacked and harassed the Ming coast after the Battle of Jingjing, and consisted of the Japanese and the Ming people who lost their livelihood due to the sea ban.

During this period, the Japanese Ronin were among the Japanese ronin, the agents supported by the Japanese daimyos, and the armed ship owners of the Ming Dynasty, each with its own area of activity.

Therefore, in order to exterminate those Japanese pirates, what the Ming had to do was to capture the islands on which the Japanese depended for their survival, and force the Japanese to be unable to continue at sea, so as to ensure the safety of the Ming Sea.