In June of the fourth year of Jian'an (199) (the specific date is unknown, temporarily stored here), Yuan Shao raised 100,000 troops and 10,000 horses in an attempt to attack Xuchang south, thus kicking off the Battle of Guandu.

Yosua raised the soldiers from the south to the news of Liangchang, and the army generals thought it was difficult to defeat Yosua, but the Jiangxi said: "I knew that Shao'o was a man, great and wise, colourful and thin, whick and weak, and the soldiers were many and unknown, and the ruling order was not the same, and the land was wide, and the food was abundant, and it was sufficient for me to serve."

In August, Cao Cao led the army into the northern shore of the Yellow River, in the city of Li Yang, and sent the hegemonic army into the Qingzhou Belt, consolidating the right wing, preventing the Yuan army from attacking Chongqing from the east. Left in the ban on the two thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand-thousand cru

When Cao Cao all the effort was made to set up the battle against Yuan, Liu Chang rebelled against Cao Cao, killed Yuan Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu Xu

In February of the fifth year of Jian'an (200), Yuan Shao personally led an army into Liyang, and sent Guo Tu, Chun Yuqiong, and Yan Liang to attack Baima stationed by Liu Yan, the prefect of Dongjun. Liu Yan was weak and besieged by Yan Liang's army. The situation was urgent. In April, Cao Cao decided to lead his troops to save Liu Yan. He adopted the advice of his counselor Xun You, first led his troops to Yanjin, pretending to cross the river to attack the rear of Yuan Shao, and Yuan Shao immediately divided his troops to the west. However, Cao Cao took the opportunity to lead an elite army to attack Baima eastward. Yan Liang was caught off guard and killed by Guan Yu, and the siege of Baima was solved. Yuan Shao also sent generals Wen Chou and Liu Bei to lead five or six thousand cavalry infantry across the river to pursue Cao Jun. At that time, Cao Jun only had more than 500 cavalry. In crisis, Cao Cao ordered the cavalry to unsaddle and release their horses, and abandoned the baggage on the way to Yuan Jun. Soon, Wen Chou soldiers arrived, and after seeing the horses and baggage abandoned by Cao Jun, you fought for me and robbed them, making a mess. Seeing this, Cao Cao ordered his more than 500 cavalry to immediately mount their horses and rush to Yuan Jun. Yuan Jun was immediately defeated and general Wen Chou was beheaded. This time, Cao Jun even beheaded Yan Liang and Wen Chou, two famous Hebei generals, and Yuan Jun was greatly shocked. Yuan Shao ordered the army to retreat to Yangwu. Cao Cao also returned the officers to defend.

In the month of August, the Yoshua soldiers arrived, and the Yoshua soldiers stood up in the camp, and the East had ten miles, and the Yoshua soldiers were divided against the Yoshua soldiers. In September, the Yoshua soldiers came out, but the battle was unsuccessful. At the time, the Yoshua soldiers were ten thousand, and ten thousand were wounded, and the Yoshua soldiers had to return to the camp, and the Yoshua soldiers found this, and the Yoshua soldiers mounted the mountain, and the Yoshua soldiers burned the ground against the Yoshua soldiers in the camp. In order to reverse this passive situation, the Yoshua soldiers ordered the Yoshua craftsmen to drive the Yoshua soldiers to the camp, and

In the midst of the month, Yuan and Yuan were in the midst of the mountains, and in the midst of the month, Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains, and Yuan and Yuan were in the midst of the mountains.

The Battle of Guandu, after more than a year of confrontation, ended with Cao Cao's overall victory. With about 20,000 troops, Cao Cao surprisingly won and defeated Yuan Jun by 100,000. This battle case has become a typical battle case in Chinese history in which the weak defeated the strong and the few defeated the many. With his extraordinary intelligence and courage, Cao Cao wrote the most glorious page of his military career. In the seventh year of Jian'an (202), Yuan Shao died of melancholy due to defeat. Cao Cao took the opportunity to completely destroy the Yuan military group. In the twelfth year of Jian'an (207), Cao Cao conquered Wuhuan. At this point, the north, which had been torn by war for a long time, was unified.