How did Sima Yan usurp the throne

Sima Yan, the eldest son of Si Mazhao, served as Zhongfu Army; However, Si Mazhao intended to let his youngest son, Sima You, succeed to the throne, but with the opposition of many ministers, Sima Yan was elected King of Jin in May 265.

In August of the same year, Si Mazhao suddenly died of a stroke at the age of 55. Inherited Zhao's sum. In December, Sima Yan forced Cao Huan, the Emperor of Wei Yuan, to abdicate and become the Emperor of Jin.

Emperor Wudi of the Jin Dynasty wantonly established the imperial clan as the king, so that he could master the military power, in order to make up for the experience that Cao Wei suppressed the imperial clan excessively, which led to the emperor's isolation and helplessness, and was finally usurped by the powerful ministers. At the same time, in 268, Taishi Law was promulgated, and in 279, Jia Chong, Yang Ji, Du Yu and Wang Jun were ordered to attack Wu. In March 280, Sun Hao surrendered, Sun Wu perished, and the separatist regime since the Yellow turban insurrectionary uprising was temporarily unified.

Sima Yan

Sima Yan (236~290) was born in Wenxian County, Hanoi (now Wenxian County, Henan Province). The founding emperor of the Jin Dynasty (reigned from 265 to 290), the grandson of Sima Yi, the nephew of Sima Shi, the eldest son of Si Mazhao, the emperor of the Jin Dynasty, and his stepfather and mother were Wang Yuanji, the civilized queen.

At the beginning, it was sealed in Beiping Pavilion with the honor of my father. Welcome Cao Huan, Duke of Long Island, to Zhongfu County, and to be the mayor of Xinchang Township. He was honored as General Fujun and Prince of Jin. In the second year of Xian Di (265), he became prime minister and attacked the king of Jin. Cao Huan, the Emperor of Wei Yuan, was forced to meditate, and the Jin Dynasty was established, with Luoyang as its capital.

Innovating politics, revitalizing the economy, practicing frugality, implementing the rule of law, promulgating the household model (including the farmland occupation system, household modulation system and the accumulation of officials occupying farmland), the population increased, and the whole society showed a prosperous scene, which was called "the rule of Taikang" in history. In the fifth year of Xianning (279), Du Yu was ordered to launch the "Battle of Jin and Wu" to realize national reunification.

Since then, arrogance and extravagance, laziness in politics, and enfeoffment of kings have laid a hidden danger for the chaos of the eight kings.

In the first year of Taixi (16, May 290), he died at the age of 55 and was buried in Yu Ling, Emperor posthumous title.

Extended data:

Unify the whole country:

The battle of Jin and Wu was from 279 1 1 month to March of the following year. Sima Yan, Emperor Wu of Jin Dynasty, sent his troops to build Ye (now Nanjing, China, Jiangsu) and destroyed Wu in one fell swoop, thus realizing the unified war.

In 279 ad 1 1 month, Emperor Wu of Jin sent troops to attack Wu in six ways. At the beginning of February of the following year, after conquering Danyang City (now Zigui East in the south-central part of Hubei Province), it broke through the iron lock and iron cone of Hengduanjiang Road in Wujun, and the ship was unimpeded. Later, Sun Xin, commander-in-chief and commander-in-chief of Wu Xixian, was captured alive.

On the Eastern Front, Prime Minister Wu led 30,000 troops to cross the river and was defeated by 8 Jin Army. 8 Jin Jun made a decisive decision and directed his troops at Jianye. Wu Jun was frightened and timid, and the foot soldiers fled when they heard the news, and the State of Wu declared its demise.

In this battle, the Western Jin Dynasty was well prepared, made good use of fighter planes, divided the soldiers into multiple ways, and went hand in hand with the land, which played a powerful role as a water army and made a decisive decision to win it in one fell swoop.

Wu Zhu was fatuous, lax in defense, unpredictable in military affairs, and lacked unified countermeasures, which led to successive failures. After the Jin Dynasty destroyed Wu, China, which had been divided for decades since the end of the Eastern Han Dynasty, was reunited.

The Battle of Jin and Wu was the first large-scale river-crossing operation in the history of China War. This campaign initiated the strategy of land and water going hand in hand, multi-channel parallel and downstream, ended the decades-long division since the Eastern Han Dynasty, and provided reference for future generations to fight in the Yangtze River.

In the Jin-Wu War, the Western Jin was well prepared, the strategic command was correct, and the operational deployment was proper, so it won. The water army led by Wang Meng played a very important role in the victory of this war. Under the circumstances at that time, the Yangtze River natural barrier was an insurmountable obstacle, not to mention that Wu took the boat as a horse and the water army was always strong. Cao Cao defeated Chibi; Cao Pi's attack on Wu and his return from Linjiang were restricted by the Yangtze River.

Sima Yan accepted these lessons and trained a powerful water army. This water army set sail from Bashu, along the river to the east, breaking iron locks, removing iron cones, breaking off customs and seizing customs, and was invincible. It only took more than 40 days to get to Jianye. Then he lost no time to cooperate with the infantry to launch a general attack. Finally, Sun Hao, the Lord of Wu, was forced to surrender and the State of Wu perished.

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