As early as the tripartite confrontation, Wei's power had surpassed that of Shu and Wu. For example, in terms of population, Wei accounts for about 4/7 of the national population, and Shu and Wu together account for 3/7. In 263 AD, after Wei destroyed Shu, the tripartite confrontation between the three countries turned into a confrontation between the north and the south, and Wei became stronger. After Jin Wudi replaced Wei, he was ambitious and prepared to send troops to destroy Wu and unify the whole country.
The whole country in the Western Jin Dynasty was in a good situation, but Wu was in a slump. Sun Hao, the Lord of Wu, was dissolute and cruel, depriving Wu of the opportunity to rally. Sun Hao ordered the minister's daughter to go through his selection and enter the harem beautifully for him to enjoy, and the rest could talk about marriage, which made him lose the support of the ministers, self-destruct his future and finally become a loner. He Shao, the secretary of China who advised him, didn't get his praise. On the contrary, he brutally sawed off his tongue with a red-hot saw blade, which was as cruel as Shang Zhouwang. Sun Hao killed people in a cruel way, gouging his eyes, peeling his face and cutting off his feet. Sun Hao's cruelty doomed his demise. Because of Sun Hao's cruelty, his generals also lost confidence in him and surrendered to the Western Jin Dynasty. Seeing that the national strength of Wu was weak and the political situation was unstable, the ministers of the Western Jin Dynasty also persuaded Wu to take the opportunity to destroy it.
However, the Emperor Wu of Jin was opposed by the conservatives headed by Jia Chong, a senior officer of Ethereum. They think that Wu has the natural barrier of the Yangtze River and is good at water warfare, so it is difficult for northerners to win. Moreover, in recent years, Xianbei has mobilized troops in the west to resist gold. At this time, it is "inappropriate" to fight Wu. Yang hu, Zhang Hua, Du Yu and others think that Sun Hao, the Emperor Wu, is extremely corrupt. He not only cruelly exploited and suppressed the broad masses of the people, but also excluded dissidents within the ruling group and used cruel punishments. Sun Wu is currently "centrifugal up and down". If he sends troops at this time, he will "win without fighting." If we miss the opportunity, it will be difficult for the people of Wu to "establish a stronger order" and make every effort to destroy Wu.
Two schools of opinion, tit for tat. In this way, an extremely serious problem is placed in front of Emperor Wu of Jin Dynasty: whether to send troops to destroy Wu and unify the whole country? Emperor Wu of Jin realized that since the Qin and Han Dynasties, reunification has become the mainstream of human history, and the general public demanded reunification and longed for peace. Therefore, emperor Wu of song firmly stood on the side of the hawk.
In order to complete the great cause of destroying Wu, Emperor Wu of Jin made full preparations strategically. As early as AD 269, he sent Yang Hucheng to stay in Jingzhou, a military town, to prepare for the destruction of Wu. After yang hu was in Jingzhou, he reduced taxes and stabilized people's hearts. Jingzhou is closest to Shicheng (now Zhongxiang County, Hubei Province). Jin Jun adopted the strategy of "winning with goodness" and was very kind to Wu Jun. Because of Sun Hao's profligacy, soldiers in the army often didn't get paid or even had enough to eat. Yang ordered people to send wine and meat to Wu Jun to disintegrate Wu Jun. In this way, Wu Jun came to surrender from time to time. Yang ordered Wu Jun to welcome him and sent him away. On one occasion, Deng Xiang of Wujiang River was caught by Jin Jun in Xiakou, and yang hu's men insisted on killing him. Yang hu not only didn't kill Deng, but also untied him personally and sent Deng back. Sometimes, the wounded beasts hunting in Wu County fled to the territory of Jin Jun, and Jin Jun also sent these beasts to Wu County's account. It is also because of this "strong" feeling that the hearts of Wu Dong generals are gradually inclined to 8 Jin J.
In Xiangyang, Emperor Wu of Jin ordered Yang Hucheng to control martial arts with benevolence, and at the same time trained the water army and built warships in Yizhou, the upper reaches of the Yangtze River. After 10 years of full preparation, in 279 AD, the Jin army began to launch a large-scale attack on China. In order to win quickly, 8 jin j divided into five roads on the north bank of the Yangtze River and joined forces with Wu Jun. On the sixth road, 8 jin j set out from Badong and Yizhou, and traveled eastward along the river, taking Jianye, the capital of Wu Jun, and 200,000 jin j took Wu Dong. Dongwu defenders nailed countless sharp iron cones more than ten feet long in Wuxia, and blocked the river with thick chains at the narrow part of the river. Jin Jun first discharged bamboo into the Yangtze River. The Jin army carried countless dozens of feet of fire mixed with sesame oil on board to light the torch. A raging fire may burn the chain. In this way, the defense facilities of the Yangtze River in Wu Dong were eliminated one by one.
When 8 jin j 6 attacked Wu Dong, in order to distract and attract Wu Jun who was guarding Jianye, General Anton Wang Hun led 8 jin j 1 route from north to south and took Jianye directly. Sun Hao quickly ordered Prime Minister Zhang Zan to command the main force to cross the river northward to meet Wang Hun. As a result, Jin Jun, who went down the river, took the opportunity to capture Jianye.
Due to the full preparation, proper timing and correct strategy of Emperor Wu of Jin Dynasty, it only took more than four months before and after, and all the victories in the war against Wu were achieved. Since then, all counties, prefectures and counties in Dongwu have been formally incorporated into the territory of Jin State.
In 280 AD, the tripartite confrontation between the three countries ended completely. Sima Yan, Emperor Wu of Jin Dynasty, finally unified the whole country, ending the division that lasted for nearly a hundred years.