In 263 AD, Si Mazhao ordered Zhong Hui, Wargo and Zhuge Xu to attack Shu, and Jiang Wei, commander of Shu Han, stopped the enemy at Jiange. Finally, Wargo attacked Fucheng and advanced into Chengdu. Finally, Liu Chan surrendered and Shu Han perished, which was the famous battle of Wei destroying Shu. After Zhong Hui and Jiang Wei attempted to defect, they were immediately put down by Si Mazhao.

Si Mazhao died soon, and his son Sima Yan finally usurped the throne in 265, and Cao Wei perished. Sima Yan established the Jin Dynasty for Emperor Wu of Jin Dynasty, with Luoyang as its capital, which was called the Western Jin Dynasty in history.

In 279 AD, Wang Jun and Du Yu wrote a letter to crusade against Wu, while Jia Chong and Xun Xu opposed it on the grounds that the northwest was undecided. Finally, Sima Yan decided to attack Wu in 65438+February, which was the so-called Jin-Wu War. Sima Yan took Jia Chong as the commander-in-chief, and Wang Junjun in the upper reaches, Du Yu in the middle reaches and Wang Hun in the lower reaches went hand in hand. Finally, in 280, when Jianye approached, Sun Hao surrendered, Sun Wu perished, and the Western Jin Dynasty successfully unified the world.