Although Cao Cao pacified the four northern states, he failed to capture the brothers Yuan Xi and Yuan Shang, and the two of them made waves with the help of Wuheng's power, which posed a considerable threat to Cao Cao's rule in the north.

【Wuheng Rebellion】

At the end of the Han Dynasty, Qiu Liju, the leader of Karasuma in Liaoxi, commanded more than 5,000 households. The leader of Kamiya Karasuma is difficult to build, and he leads more than 9,000 households. Su Fuyan, the leader of Karasuma in Liaodong, commanded more than 1,000 households and called himself the king of Qiao. Wuyan, the leader of Karasuma in Beiping, commanded more than 800 households, and called himself the king of Khanlu.

Later, Zhang Chun, the Taishou of Zhongshan, betrayed and fled to the Qiuliju tribe, claiming to be the king of Mitian Anding, and the marshal of Karasuma of the three counties, invading Qingzhou, Xuzhou, Youzhou, and Jizhou, and burning and killing the people. In the last years of Emperor Ling of the Han Dynasty, Liu Yu was appointed as the leader of Youzhou. Liu Yu offered a bounty to kill Zhang Chun, and the north was pacified. Later, when Qiu Liju died, his son Lou Ban was young, and his son was outstanding in the martial arts, so he inherited the throne, and the president of the three Karasuma tribes, and his subordinates all obeyed his command.

Yuan Shao and Gongsun Zhan fought many times, but they could not decide the winner. Badun sent an envoy to Yuan Shao to sue for peace and help Yuan Shao attack Gongsun Wang Zan, and the result was a great victory. Yuan Shao pretended to entrust the king's order, issued an edict, gave the seals of the kings of Badun, Qiao, and Khanlu, and appointed them as Shan Yu. Later, Lou Ban grew up, and King Qiao led his subordinates to promote Lou Ban as Shan Yu and Badun as the king. Bunton is good at giving advice. Yan Rou, a native of Guangling, grew up in the Karasuma and Xianbei tribes, and won the trust and respect of the locals. Yan Rou relied on Xianbei's strength to kill Karasuma Captain Xing Ju and replace him himself. Yuan Shao appeased Yan Rou, and the northern border was pacified.

In the tenth year of Jian'an (205), after Cao Cao eliminated Yuan Tan and Yuan Xi was driven away from Youzhou by his subordinates, Zhao Qian, Huo Nu and others took advantage of the chaos in the north to kill Youzhou Thorn Shi and Zhuojun Taishou, and rebelled. At the same time, the Wuhuan tribes of Liaoxi, Liaodong, and Youbeiping counties attacked Qianping, which was rarely defended by the auxiliary.

So in the autumn and August of the same year, Cao Cao's army crusaded against Zhao Qian and others, killing Zhao Qian, Huo Nu and others. Later, he crossed Lushui to rescue Qianping, and Wuhuan retreated to the outside of the Saiwai, and this year Gao Gan also took the opportunity to make trouble.

Earlier, Yuan Shao named the chiefs of each tribe Shan Yu, and took the girls of the commoner family as his daughters and married those Shan Yu as wives. The power of the Wuhuan chieftain of Liaoxi was particularly strong, and he was favored by Yuan Shao, so the Yuan Shang brothers went to join Badun. Badun repeatedly sent troops into the fortress to loot, wanting to help Yuan Shang restore his old territory.

They also took advantage of the chaos in the world to kidnap more than 100,000 Han households, which became a major hidden danger in the north. For this reason, Cao Cao prepared to go out to fight, and he dug the Pingyu Canal and the Quanzhou Canal under the advice of Dong Zhao in order to transport the grain and grass needed by the army.

【Discussion of Discussion】

At that time, Cao Cao was ready to send troops to conquer Wuhuan, but was met with great resistance.

Many generals under Cao Cao said: "Yuan Shang is just a fugitive criminal, and the Wuhuan people are insatiable and don't miss the old feelings, how can they be used by Yuan Shang." Now that the army is deep into the outside of the fortress to conquer Wuhuan, Liu Bei will inevitably persuade Liu Biao to take advantage of the void to attack Xu Du, in case of change, the matter will be regretted. ”

Guo Jia said: "Although you are powerful in the world, but the Wuhuan people rely on the distance, they will not be prepared in advance, take advantage of their unpreparedness, and suddenly attack, you can win a battle." Moreover, Yuan Shao was kind to the people of this region and the alien races outside the Saiwai, and the Yuan Shang brothers are still alive in the world. Now the people of Ji, Qing, You, and the four states have only obeyed us out of fear, and have not received our kindness. If we leave here and lead the army to the south, Yuan Shang uses the force of Wuhuan as capital to recruit subordinates who are willing to die for the benefactor, and the Wuhuan people move, the people of the four states and foreign races will respond one after another, which will make the people of the four states tempted and have a plan to divide them, I am afraid that Qingzhou and Jizhou will no longer be under your control. Liu Biao is just a person who can only sit there and make discussions, he knows that his talent can't control Liu Bei, and he is afraid that he can't control Liu Bei if he reuses Liu Bei, and if he doesn't give Liu Bei a heavy responsibility, Liu Bei won't be used by him. Therefore, even if we take away the expedition of troops across the country, you will not have to worry. ”

So Cao Cao listened to Guo Jia's advice and decided to crusade against Wuheng and sweep away the troubles.

【Tian Chou no Suke】

When Cao Cao was crusading against Wuheng, he also received great help from Tian Chou, who was under the command of the former Liu Yu.

At first, after Liu Yu's death, Tian Chou was released by Gongsun Zhan, so he lived in seclusion, Yuan Shao sent envoys to Wuzhong County several times to summon Tian Chou, and sent someone to grant Tian Chou the seal letter of the general, so that Tian Chou summoned the people under his command, but Tian Chou refused. Later, Yuan Shang inherited Yuan Shao's position and also sent people to recruit Tian Chou, but he never went.

After Cao Cao pacified Jizhou, Xing Hao, a native of Hejian who had been following Tian Chou, said to Tian Chou: "It has been more than 20 years since the Yellow Turban Rebellion, and the sea is in turmoil and the people are displaced. Now I have heard that Cao Gong's decree is strict, and now the people are tired of war, and the war will inevitably tend to be peaceful to the extreme, and I hope to be the first of the people. So, Xing packed up and returned to his hometown. Tian Chou said: "Xing Hao is a prophetic person. He also had the idea of helping Cao Cao, and Cao Cao appointed Xing Hao to work for Jizhou.

Tian Chou during the seclusion because of his prestige, even Karasuma and Xianbei also sent envoys to send tribute, Tian Chou accepted and comforted them, and advised them not to invade again, but unfortunately these foreign people did not change their nature, and took advantage of the chaos in the Central Plains to invade many times, and also killed many famous scholars.

Tian Chou was very angry because of this, and had the idea of crusading against Wu Huan, but he did not have enough strength. Later, Cao Cao sent an envoy to recruit Tian Chou, and Tian Chou asked his subordinates to quickly manage his outfit, and the subordinates said: "In the past, Yuan Gong admired you, and gifts and orders came many times, but you did not give in at all; Now that the envoy of Gong Cao is coming for the first time, you are like I'm afraid it's too late, why is that? Tian Chou smiled and said, "This is not something you can know. He accompanied the envoy to Cao Cao's army, and was appointed as the chief of Cao Peng, ready to be introduced to the council.

is unique, Liu Dai, the assassin of Yanzhou, was also recruited by Cheng Yu, but Cheng Yu couldn't live or die, and Cao Cao became the pastor of Yanzhou, Cheng Yu couldn't wait to run faster than a horse, and when his villagers asked Cheng Yu, Cheng Yu also smiled and pretended to be mysterious.

Tian Chou, Cheng Yu and others have different views on Yuan Shao, Yuan Shang, Liu Dai and Cao Cao, which has actually explained a lot.

After Tian Chou took refuge in Cao Cao, Cao Cao issued an edict the next day, saying: "Tian Zitai is not the person I should appoint as an official. So he recommended him as Maocai and appointed him as the county magistrate of Yixian County. But Tian Chou did not take office, but followed the army to Wuzhong County, ready to serve as Cao Cao's guide.

With the help of Tian Chou and Guo Jia, Cao Cao's Northern Expedition to Wuheng finally began.