Xinling Jun Wei Wuji saved Zhao Yougong in the Battle of Handan, but he stole his brother Wei Anjiao's Wang Hu Fu and killed the Wei general Jin Contempt, so he was afraid that the King of Wei would be condemned and did not dare to return to Wei, so he ordered the deputy general to lead the Wei army back to China, but he led the guests to stay in Zhao. When King Xiang of Qin Zhuang heard that Xinling Jun was staying in Zhao, he thought that this was a great opportunity to attack Wei, and ordered the general Meng Wei to lead the Qin army to the east to attack Wei. The rejuvenated Qin army attacked Wei on a large scale, and the Wei army was repeatedly defeated and could not resist the Qin army's attack. King Wei Anjiao was anxious about this, so he sent an envoy to ask Wei Wuji to return to China. The king of Wei sent an envoy with gold coins to ask Wei Wuji to return to China to resist the Qin army. Under the persuasion of Mao Gong and Xue Gong, Wei Wuji, who was hesitant at first, finally decided to return to Wei. Wei Wuji and Wei Anji, the two brothers, hadn't seen each other for ten years, and they couldn't help but cry when they reunited. King Wei appointed Wei Wuji as a general, the supreme commander of the Wei army. After Xinling Jun returned to China, the king of Wei exempted him from the crime of stealing talismans and killing generals, and awarded him the seal of the general. Xinling Jun sent a letter to various countries, requesting that troops be sent to rescue Wei. Zhao, Han, Chu, Yan and other monarchs have always respected Xinlingjun, and they have sent troops to Wei to listen to Lingjun's moderation, only Qi refused to send troops. Wei Wuji led the allied forces of Wei, Zhao, Han, Chu, and Yan to attack Qin in the west, and defeated the Qin army south of the Yellow River, and the Qin army was defeated and retreated. The coalition forces pursued them beyond the river and surrounded the Qin army. Xinling Jun personally risked the arrow stone and took the lead in the charge. The morale of the whole army was greatly boosted, and they followed the charge. The Qin army camp was in disarray, and Meng Fu was forced to retreat westward because of the enemy on his back. The allied forces took advantage of the victory and pursued to Hangu Pass. The Qin army closed the door tightly and held out. The two armies held each other for more than a month before the coalition forces withdrew. In recognition of the merits of Xinling Jun's defeat of Qin and the recovery of the lost land in the eastern part of the country, King Wei Anjiao worshiped as the prime minister and sealed the five cities.

During the reign of King Huiwen of Zhao, the Xiongnu tribes in the north gradually became stronger, and often went south to invade the borders of Zhao, which became a great disaster for Zhao. Li Mu was appointed to garrison Daihe Yanmen to guard against the invasion of the Xiongnu.

Li Mu adopted an active defensive strategy at the border pass, stipulating that "the Xiongnu should enter the robbery, rush into the insurance, and those who dare to capture the captives will be beheaded", requiring the soldiers and civilians to quickly enter the camp and hold on to the Xiongnu when they encounter a surprise attack, and not to go to war. At the same time, he stepped up the training of soldiers to improve the combat effectiveness of the border guards. Because Li Mu did not fight for several years, the Xiongnu thought that Li Mu was timid, and the king of Zhao was also dissatisfied with Li Mu, so he sent someone to replace Li Mu. As a result, the new general made a rash attack and suffered a lot of losses. King Zhao had no choice but to appoint Li Mu again. Li Mu asked King Zhao not to interfere with his strategy, and King Zhao agreed.

Li Mu returned to the north to operate for several years, and the border guards were strong and strong, and they already had strong combat effectiveness. Li Mu thought that the time was ripe and let the people go out of the city to graze and attract the Xiongnu to attack. The Xiongnu tried with a small force of cavalry, Li Mu pretended to be defeated, and was defeated at the first touch, so the Xiongnu attacked in a big way, but was attacked by Li Mu's ambush left and right and lost 100,000 cavalry, and returned defeated. Zhao took the opportunity to eliminate the Ragged State, broke Donghu and surrendered Lin Hu, and his prestige was greatly enhanced. After that, the vitality of the Xiongnu was greatly damaged, and they did not dare to attack Zhao Jing again for decades.

Qin Jianghuan led the Qin army to defeat the Zhao army in Pingyang, beheaded 100,000, and killed Zhao generals. Qin Jianghuan led the Qin army east out of Shangdang Taihang Mountain and went deep into the rear of Zhao State, broke the Zhao army, and captured Chili and Yi'an. The Qin army advanced to Handan, and Zhao Wangqian urgently ordered General Li Muwei, a famous general of the northern frontier, to lead his troops south and command all the Zhao troops to resist the Qin army.

After Li Mu led the main force of the border guards to join up with the Zhao army sent by Handan, he confronted the Qin army near Yi'an. After fierce fighting, the Qin army was defeated. Huan only led a small number of his own soldiers to break out of the siege and rushed back to Qin. The state of Zhao recaptured the land occupied by the state of Qin, and Li Mu was named "Wu'an Jun" for this battle.

After eradicating the forces of the two major groups of Chang Yu and Lü Buwei, King Yingzheng of Qin began to unify the Six Kingdoms War. First of all, he started from Korea, the weakest of the six countries, and it happened that at this time, Nanyang, South Korea, faked Shouteng and surrendered the city, and the king of Qin appointed the fake Shouteng as the internal history of Beijing. In the battles of Fei and Fanwu, the Qin army was annihilated by about 100,000 people, with huge losses and the attack blocked. However, the Zhao army also suffered heavy casualties. Therefore, according to the original central breakthrough, the Qin State annihilated one by one from near to far, and directed the main direction of attack towards South Korea. Long Hui arranged for Pang Juan to lead tens of thousands of soldiers from the First, Fourth, Sixth, Nineteenth, and Twentieth Armies to help the 100,000 Qin army, while the Korean army had only 45,000 defenders, but they were well-armed.

Qin attacked Han, Han Wang An sent Han Fei to envoy Qin, Qin left Han Fei behind, and soon killed him

South Korea's Nanyang Shouteng voluntarily surrendered and sacrificed Nanyang. After receiving it, the Qin State actually used this place as a base for advancing and preparing for an attack on Korea.

Nesteng led the Qin army to suddenly cross the Yellow River south to attack Korea, conquering the Han capital Xinzheng in one fell swoop, capturing Han Wang'an, and then occupying the entire territory of Korea and destroying Korea. The Qin State then set up Yingchuan County in Handi, and established the county to govern Yangzhai.