In 265, Sima Zhao had just destroyed the Shu Han dynasty and died of a stroke. His son Sima Yan succeeded him as the new Duke of Jin. After Sima Yan ascended the throne, he immediately summoned Jia Chong and others to discuss the matter of declaring Wei emperor. Jia Chong said: "The Duke of Jin can enter the palace to question Lord Wei, and if he allows it, he can avoid a fight." Sima Yan followed his advice and brought 1,000 people into the palace with iron armor. When Cao Yan saw sima Yan coming like this, he already understood his intentions and immediately stood up and said, "The Duke of Jin doesn't need to say much, and abdication is." At this point, Cao Wei, who had only been established for 54 years, changed hands and was replaced by Sima Shi.
Sima Yan proclaimed himself emperor of Wei in Luoyang and established the Jin Dynasty. Sima Yan was emperor of The Jin Dynasty, and he posthumously honored his grandfather Sima Yi as Emperor Xuan of Jin, his uncle Sima Shi as Emperor Jing of Jin, his father Sima Zhao as Emperor Wen of Jin, and the wei lord Cao Yan as The Prince of Chenliu. From 265 to 316 AD, the capital of the Jin Dynasty was Luoyang, and the history referred to this dynasty as the Western Jin Dynasty.
By the time the Western Jin Dynasty was established, Eastern Wu, the only remaining of the Three Kingdoms, had already declined. The brutality of Sun Hao, the last emperor of Eastern Wu, was notoriously brutal. He overhauled the palace, enjoyed himself to the fullest, and suppressed the people with inhumane punishments such as peeling the skin and chiseling the eyes, which was hated to the bone.
In 279, some jin ministers, believing that the time was ripe, persuaded Emperor Wu of Jin to eliminate Eastern Wu. Emperor Wu of Jin decided to send 200,000 troops, and marched along the north bank of the Yangtze River in five ways to the Wu army. One of the Jin armies started from Badong and Yizhou, down the river east, and directly attacked the Wu army's capital Jianye (present-day Nanjing, Jiangsu).
The longjun general Wang Jun was a very scheming general, and he had already made preparations to cut down Wu and supervise the construction of a large number of warships in Yizhou. This warship is very large and can accommodate more than two thousand people. The ship also built a city wall tower, on which people stand and can look around, so it is also called a building ship. When building ships, in order not to let Dongwu find out, they were secretly processed and manufactured in a hidden environment. But as time goes by, it is inevitable that many pieces of broken wood will fall on the surface of the river and go down the river. When the wood chips drifted to the territory of Eastern Wu, Taishou Wuyan discovered this incident and hurriedly reported to the Wu lord Sun Haoyu: "These wood chips must have been split down when the Jin army was building ships. The Jin army is building ships upstream, and it seems that they are going to attack us, and Your Majesty must make preparations early! Sun Hao said dismissively, "What are you afraid of!" I don't beat them, they still dare to come and violate me!"
Wu Yan had no choice but to fortify himself, and he ordered the defenders along the river to lay a lot of large wooden stakes in the dangerous places on the river surface, nail large iron chains, intercept the waist of the river, and install iron cones that were more than a foot high under the water, like countless reefs, so that the Jin water army could not pass.
At this time, the men and horses of Du Pre of the Middle Route Army and Wang Hun of the East Road were victorious one after another, and the soldiers were greatly enhanced, and several people and horses quickly gathered together. After discussion, the generals believed that land and water could go hand in hand and could attack Jianye with one blow. Therefore, all the soldiers and horses were launched together, and each hero was successful.
However, the water army of The Dragon General Wang Jun, who had just arrived at Zigui, could not advance because the building ship was blocked by chains and iron cones. The soldier reported to Wang Jun, and Wang Jun laughed and said, "This is a small skill of carving insects, and there is nothing to worry about." Immediately, he ordered the Jin soldiers to build dozens of large rafts, each of which had some straw men on them, clad in armor and holding battles. He sent a few watery soldiers to lead a group of rafts down the river. Wu Bing saw the crowd on the raft and thought it was a Jin soldier, and fled without waiting to get close. And these rafts touched the iron cone, and the tip of the iron cone was stuck under the raft, some of which were directly swept away, and some of which were pushed down by the raft. Then, the soldiers of the Jin Army set up a large torch on the raft. These torches are filled with sesame oil and burn at one point. He let these rafts with large torches sail in front of the warships, and when they encountered the chains, they burned a raging fire, breaking the chains one by one.
Wang Jun's water army swept away the iron cone under the water and the iron chains on the river, and the brigade building ships went down the river to the east, with a huge momentum. Sun Hao, the lord of Wu, was panicked when he heard the news, and he sent the general Zhang Xiang to lead a water army of 10,000 people to resist. And when Zhang Xiang's soldiers saw that the river was full of Wang Jun's warships, countless flags fluttered in the wind, covering the sky and the sun, which frightened Wu Bing into erecting the flag early.
Sun Hao, the lord of Wu, knew that the Wu army was not capable of fighting, and he was horrified and did not know how to be good. At this time, the admiral of the water army, Tao Jun, said to Sun Hao: "The water army ships I lead are all small, and if Your Majesty gives me 20,000 water troops and large ships, I have my own plan to attack the Jin army." Sun Hao immediately made him a general, used the Yulin Army, and asked him to command the water army to meet the enemy. The next day, Tao Jun led the water army on the river, and suddenly the north wind suddenly rose, and it was dark, and the flags on the warships were blown down into the river. Tao Jun's water army was scattered for a while and fled in all directions, and Wang Jun immediately ordered Zhang Xiang to be the vanguard and directly attack Jianye.
Wang Jun's water army met almost no resistance, and sailed smoothly to Jianye. A hundred miles near Jianye, full of warships of the Jin army, Wang Jun led 80,000 sailors to the shore, Zhang Xiang called open the city gate, and entered Jianye City with a dementor-like momentum.
Sun Hao heard that the Jin soldiers had entered the city, frightened the six gods and no masters, and after being reminded by Zhongshu Ling Hu Chong, he also learned from Liu Chan, the lord of the Shu Han Dynasty, took off his jacket, let people tie their hands, and led a group of Eastern Wu ministers to surrender in front of Wang Jun's military camp. In this way, the period of separation of the Three Kingdoms, which began with Cao Pi's claim to the throne, came to an end, and the whole country entered the great unification