In the process of Sima Jia replacing Cao Wei, why could Huainan not control it?

Four town generals began to appear in the late Eastern Han Dynasty. The so-called four town generals are: the town east generals, the town south generals, the town west generals and the town north generals. Their duty is to replace the imperial court in guarding the four directions of east, west, north and south. The last years of the Eastern Han Dynasty were originally troubled times. Although there are four town generals, they are only separatist forces. The first general in Zhendong was Cao Cao himself, the general in Zhennan was Liu Biao, and the general in Zhenxi was Han Sui.

In the Cao Cao era, because of the constant war, four generals were mainly set up. The so-called four generals are the generals who conquered the east, south, west and north. Different from the four-town generals, the four-town generals are mainly generals fighting in all directions, while the four-town generals are mainly generals guarding all directions. One wants to fight, the other is guarding, fighting in wartime and guarding at ordinary times.

Among them, General Zheng Dong and General Cheung Nam are mainly on guard, and General Zheng is mainly on guard, which is also arranged according to the strength of the enemy and the actual situation.

In Cao Cao's era, Zhang Liao was the general of conquering the east, Coss was the general of conquering the south, Xia was the general of conquering the west, and the general of conquering the north was vacant. At the same time, according to the enemies faced by the regime, Cao Cao divided the four war zones into east, south, west and north. Because Cao Cao's main enemies are Sun Quan in Jiangdong and Liu Bei in Shu Han, Cao Cao's heavy forces are also used against Sun Quan and Liu Bei.

After the death of Cao Cao, Cao Wei's generals who conquered the East had great power and high status, and commanded troops in Qingzhou, Yanzhou, Xuzhou and Yangzhou. We should know that there are only nine states in the whole Cao Wei, and the generals who conquered the East accounted for four, and these four states have all become economically developed areas in Cao Wei.

Zhang Liao was the first general of Cao Wei's crusade, and Zhang Liao was also the most brave general of Cao Cao. In the Battle of Hefei, Zhang Liao led 800 warriors to break into Sun Quan's Zhong Jun camp before he assembled his troops. Sun Quan was once too scared to fight, and Wu Dong's army and generals were stunned by Zhang Liao for a while. Only by relying on Pan Zhang did we stabilize the soldiers who fled. Zhang Liao became famous in Jiangdong because of World War I in Hefei, so he was named the general of the Eastern Expedition.

The second general of Cao Wei was Cao Xiu, who was also an outstanding general of the second generation of Cao Wei. After Cao Cao's death, he was reused by Cao Pi. Cao Xiu's main task in the Eastern Front was to resist Sun Quan, and he participated in Cao Pi's two expeditions to the south, with outstanding military achievements. After Xelloss's death, Soochow took advantage of the chaos to explore the north, and Cao Xiu also killed Wujiang in Anhui, and took Han Zong and Zhai Dan from Wujiang, making great contributions.

Man Chong, the third general of Cao Wei's crusade, became the main general of Cao Wei's Eastern Front after Cao Xiuzhi. Man Chong has been guarding Huainan for eight years, and has won many battles with Wu Dong, winning more with less, and successfully holding the eastern border. Man Chong lived to the age of Cao Fang.

Cao Wei was the fourth general to conquer the East. Hu Zun, together with Wang Chang and Wu, the general of the southern expedition, is called the Three Signs of Cao Wei, which is the barrier between the south and the east of the whole Cao Wei. Hu Zun's deeds are unknown. He only knows that he is also the ministry of Sima Yi, and went to northern Liaodong together, and was defeated by Wu and Zhuge Ke in Dongxing War.

The fifth general of Cao Wei's crusade was the tomb, the nephew of Stuart Wang Yun, who was born in a noble family. Cao Pi was appointed as the secretariat of Yanzhou in the era. After Cao Rui's death, Cao Shuang came to power, and the tomb was appointed as the general of the crusade, the fake festival and the commander-in-chief of Yangzhou Army. Two years after Cao Shuang was killed, he plotted an uprising against Sima Yi. This was the first rebellion in Huainan, which was defeated by Sima Yi by killing three families.

Wu, the sixth general in Dong Town of Cao Wei, is a famous Cao Wei general. He was first a literary critic in Cao Rui and later a secretariat in Jingzhou. He made two northern expeditions to Liaodong and failed in the first one. The second Northern Expedition finally conquered Liaodong with Sima Yi. After Sima Yi conquered Liaodong, he slaughtered and relocated Liaodong residents, which led to a blank in Liaodong and the surrounding ethnic minorities took advantage of it. Going deep into the Korean peninsula, this is the farthest eastward expedition of the whole Cao Wei, and it has been hitting the central part of Korea, recovering the fourth Han Dynasty established during the period of Emperor Wu of the Han Dynasty, and carving stones to record merits.

Later, he was transferred to General Wu of Town East. In 254 AD, Wen Qin, the secretariat of Yangzhou, opposed Sima Shi and was defeated by Wargo, Sima Shi, Zhuge Dan, Hu Zun and others. Wu was defeated and shot by local civilians.

The seventh general of Cao Wei's crusade was Zhuge Liang's clan Zhuge Dan. During Cao Shuang's administration, Zhuge Dan became the secretariat of Yangzhou. After Cao Shuang was killed, Zhuge Dan participated in the first and second Huainan Rebellion, and later became a general of the crusade. Because Si Mazhao doubted him, he called him into the DPRK as an agent, forcing him to fight against Zhuge Dan, and finally he was defeated and killed.

From 249 AD, Sima Yi launched the change of Gaoping Mausoleum to seize the supreme power of Cao Wei, and in 257 AD, Emperor Huai rebelled three times, but it was only eight years. After three rebellions in Huainan, Sima family completely controlled Huainan. Why were there only three rebellions in the jurisdiction of General Zhengdong in Huainan in eight years? Are these three rebellions all in support of Cao Wei and against Sima Shi's usurpation?

Because only Sima Yi's family did not lead troops to fight in Huainan area, Sima Yi had no record of leading troops in Cao Cao's era and Cao Pi's era. Only in Cao Rui's era did Sima Yi become the first military commander in Jingzhou and Yuzhou, and put down the rebellion in Mengda, a new city. After the death of Cao Zhen, Zhuge Liang continued the Northern Expedition, so Sima Yi was transferred to the front line of Liang Yong and became the main force of Shu Han's opposition to Zhuge Liang's Northern Expedition.

Sima Yi spent two years in Wancheng, the southern military region of Cao Wei, five years in Guanzhong, the western military region of Cao Wei, 1 year in Pingding Liaodong, and then became an assistant minister of Cao Wei. Sima Yi has attracted and cultivated many cronies in his military career in recent years. For example, Wargo was hand-picked by Sima Yi, and Guo Huai, the secretariat of Yongzhou in Guanzhong, was also Sima Yi's confidant. Zhang He, the disobedient general, was shot during Zhuge Liang's four attacks, so

Although Huainan's three evils are aimed at Sima's family, they are not necessarily loyal to Cao Wei, and there are contradictions among the generals involved in the three evils. For example, Zhuge Danshen participated in the suppression of the first rebellion and the second rebellion, but participated in the third rebellion. Wen Qin had many contradictions with Zhuge Dan who participated in the second rebellion. Zhuge Dan also killed Wen Qin in the third rebellion, which led Wen Qin's two sons, Wen Yang and Hu Wen, to take refuge in Si Mazhao.

In addition, Cao Wei's largest and strongest border guards are stationed in Huainan area, because Huainan is mainly to guard against Wu Dong, and Huainan area is the front line of both sides because of its dense water network and convenient transportation. Moreover, Huainan area has been a wasteland for many years, with a lot of food. Shouchun, the place that ruled Huainan, is also a strong city. Think about it. General Zheng Dong is in Huainan, with hundreds of thousands of troops in his hand. He has enough food to eat for a year, and Sima Yi will live. If you succeed under the banner of Cao Wei, it will definitely be an unprecedented status change. If you can't beat it, you can also take refuge in Wu on the other side of the Yangtze River, so the last three generals who conquered the east took a gamble.

However, Jingzhou area and Guanzhong area of Cao Wei either have few troops or inconvenient transportation and no resources to fight, so only Huainan area has the strength to rebel. Of course, it is not excluded that the mausoleum of Cao Wei's loyal minister and Wu fought with the Sima family for the restoration of Cao Wei. In fact, most of these seven generals are loyal to Cao Wei, and the more they move forward, the more loyal they become. Only later, the power of Cao Wei gradually weakened, and the cremation began to desert Germany, leading to rebellion. However, after the three rebellions in Huainan, Sima family completely controlled Huainan and the whole Cao Wei regime.