In the first 354 years, Zhao attacked Wei, Wei saved Wei, and Nanliang defeated Zhao and surrounded Handan, the capital of Zhao. Zhao asked Qi and Chu for help. Qin took advantage of Wei's encirclement of Handan, the capital of Zhao, and defeated Wei Jun in 354 BC to occupy Shaoliang. At the same time, Gongsunzhuang was sent to attack Korea, went deep into Korea, occupied Shangzhi, Anling and Shanshi, and built a city to insert into the border areas of Wei Dynasty. In the first 353 years, with Tian Ji and Sun Bin as generals, Qi sent troops to save Zhao. In the same year, the Qi army defeated Wei Jun in Guilin, and Chu also sent troops to Wei. In 352 BC, Qin took advantage of Wei Jun's defeat by the Qi army in Guilin, crossed the Yellow River from Pangcheng to the east, surrounded Anyi, the ancient capital of Wei, and Wei Shoujun surrendered. The following year, Shang Yang led an army to surround Guyang, Wei Guyang's defenders had to surrender under the powerful offensive, and Qin recovered some lost land. In 35 1 year BC, Shang Yang led his army into Guyang (now east of Yan 'an City, Shaanxi Province). Wei Huiwang immediately sent troops to build the Gushan Great Wall in Guyang East (from Gushan in the southeast and from the Yellow River in the northwest) to stop Qin Jun from moving eastward and ensure the connection between Hedong area and girders. At this point, Wei was attacked on all sides, but after all, it was the first power at that time. After the destruction of Zhao's capital, Zhao was forced to form an alliance at the gates, and soon he joined forces with South Korea to defeat the armies of Qi and other vassal States and make peace with Xiang, Qi and Chu. 35 1 years ago, after making peace with the eastern countries one after another, Wei mobilized troops to fight back against Qin. In the first 350 years, Wei recovered the old capital Anyi and surrounded it westward (now southeast of Yan 'an, Shaanxi). At the same time, under the attack of Wei, he made a second political reform in China to gain time. Qin Xiaogong was forced to join forces in Tongtong (now hua county, Shaanxi) and returned the land of Wei.