The weather on June 17.

In the early years of Yongle in the Ming Dynasty, the nobles in the Northern Yuan Dynasty were divided into three parts: Tatar, Wala and Wuliangha. These three tribes often kill each other and harass the Ming border. In order to stabilize the newly established Ming Dynasty, Zhu Yuanzhang had to adopt a policy of defending against the forces of the Northern Yuan Dynasty.

After Judy, the founding emperor of the Ming Dynasty, came to power, she also inherited Zhu Yuanzhang's policy towards the Northern Yuan at first. Until the seventh year of Yongle (1409), Judy sent Ji Guo to Tatar and was killed. From then on, Judy was determined to conquer the forces of the Northern Yuan Dynasty and completely eradicate this northern confidant.

First personal expedition: In the seventh year of Yongle (1409), Judy sent Qi Huangong and Qiu Fu to lead 65,438+10,000 troops to conquer Tatar. Because he underestimated the enemy, he went deep alone, was ambushed by the enemy, and was completely annihilated. In order to eliminate the border dispute, Judy decided to go on an expedition herself. In February of the eighth year of Yongle (14 10), Judy mobilized 500,000 troops. On May 8, the Ming army went to the Wada River basin, and learned that Khan Tatar and Benya led the army to flee westward to the Wara Department, and Prime Minister Arutai fled eastward. Judy personally led his soldiers to pursue Benya to the west. On May 13, the Ming army defeated the lost Benya in Nanhe (located on the border of Mongolia and Russia today). After defeating Benya, he attacked Arutai eastward, and Arutai fell off his horse and fled.

At this time, the weather is hot, water resources are scarce and food and grass are not good. Judy ordered a class division. After the attack of the Ming army, the Tatar Department surrendered to the Ming Dynasty and paid tribute to horses that year. Arutai also accepted the title of "King of Peace" given to him by the Ming Dynasty.

Second Personal Expedition: 14 10 After the Ming army went to Tatar, the Warrap Department took the opportunity to develop rapidly. 14 13, the vara army entered the wa river to spy on the central plains. Ming Chengzu was determined to personally levy again, mobilize the army and raise the salary. In the 12th year of Yongle (14 14), the Ming army set out from Beijing. On the seventh day of June, the Ming army went to Hulan and suddenly lost temperature (now southeast of Ulaanbaatar, Mongolia). Standing on the mountain, the army of 30,000 Walla soldiers was divided into three roads. Judy sent cavalry to attack and lure the enemy soldiers out of the mountain, so he ordered Liu Sheng to fire and bombard, and he personally led the fighters. This battle dealt a great blow to Valla. After many years, he dared not attack the border. At the same time, the Ming army suffered heavy casualties and was greatly weakened.

Third personal expedition: Vara was defeated by the Ming army, and Tatar took this opportunity to grow stronger after several years of development, thus changing the policy of attachment to the Ming Dynasty and often plundering the borders of the Ming Dynasty. In the 19th year of Yongle (142 1), the Tatars besieged Xinghe, an important town in the north of the Ming Dynasty, and killed Wang Xiang, the commander of the Ming army. In this regard, Judy decided to personally travel to Mobei for the third time.

In March of the 20th year of Yongle (1422), Ming Chengzu led an army to attack Tatar from Beijing. When its main force reached Jiming Mountain in the southeast of Fu Xuan, Tatar leader Arutai learned that the Ming army was coming and fled the Milky Way overnight, thus avoiding the war. In July, the Ming army arrived at Shahuyuan and captured Tatar's men. Knowing that Arutai had escaped, Ming Chengzu ordered to stop the pursuit. On the way back to Li, he defeated boundless Habu and returned to Beijing in September. Although the third attack on Mobei caused a certain blow to Tatar, it had little effect and did not completely solve the nuisance caused by the three Mongolian tribes in Mobei to the Ming Dynasty border.

Fourth personal expedition: In the 21st year of Yongle (1423), Tatar leader Arutai led his troops to harass the Ming border again, and Ming Chengzu decided to make personal expedition again after hearing about it. The Ming army went to war in early August, and when the Ming army arrived in Shacheng in early September, Artoto Moore, a subordinate of Arutai, led his troops to surrender to the Ming army, and learned that Arutai had been defeated by Vala, and the troops had been scattered, and the Ming army was temporarily stationed. 10, the Ming army continued northward and defeated the army in the north of the Yellow River and west of Tatar. Prince Tatar also led his troops to surrender, and Judy immediately appointed Tugan as the brave king. 1 1 month, the Ming army moved back to Beijing.

The fifth personal expedition: In the 22nd year of Yongle (1424), Arutai, the leader of Tatar Department, led troops to invade Datong and Kaiping in Shanxi. Judy then transferred soldiers from Shanxi, Shandong, Henan, Shaanxi and Liaodong to Shi Jing and Fu Xuan to stand by. On April 3, An Yuanhou, Sui Anbo and Chen Yingwei; Wu 'an Hou Zhengheng and Baoding Hou Yuying are left posts, while Yang Wuhou Lv Xue and Xinning Bo Tan Zhong are right posts. British Fu and Cheng Guogong are left-handed, while Cheng Shanhou and Xing 'an Bo Henry are right-handed. Ningyang Houhe also took the dirt as a pioneer and sent troops north. On the 25th, it was learned that Arutai fled to Namur River, and Ming Chengzu ordered the whole army to pursue it quickly. On June 17, I entered the south amur river in Dharam, and there was no sign of Arutai in the surrounding area for more than 300 miles. I ordered the transfer of troops. On July 18, Ming Chengzu died in Yumuchuan (now northwest of Duolun, Inner Mongolia) on his way back to Beijing. At this point, the Mongolian power was temporarily weakened, and the Ming Dynasty was exhausted, and it was no longer able to make a large-scale expedition.