2. Slaughter Dong Zhuo: During Cao Cao's expedition to Xuzhou, he was slaughtered, and along the way, "chickens and dogs were scattered and there were no pedestrians in the market". Chen Gong, who was stationed in Dongjun, was dissatisfied with Cao Cao, so he conspired with Zhang Miao, Zhang Miao's younger brother Juck Zhang and others to rebel, and welcomed Lu Bu as Yanzhou shepherd. Lu Bu was a famous soldier at that time, first for Dong Zhuo, and then together with Wang Yun, he planned to kill Dong Zhuo.
3. Battle of Guandu: Cao and Yuan were deadlocked in Guandu (now northeast of Zhongmou, Henan) and launched a strategic decisive battle. Cao Cao raided Yuan Jun's granary in Wu Chao (now Fengqiu West, Henan Province), and then defeated Yuan Jun's main force. This battle laid the foundation for Cao Cao's unification of northern China.
Battle of Red Cliffs: In 208 AD, Cao Cao wanted to destroy Liu Bei in one fell swoop. Cao Cao's soldiers are all northerners, so they can't fight a water battle. So Cao Cao retreated to the north of the river and confronted Sun Liu's army across the river. Cao Cao suffered defeat, so he appointed surrendered Jingzhou generals Cai Mao and Zhang Yun to train northern soldiers to learn water combat, and achieved initial results.
5. The Battle of Xiangfan: In July of the 24th year of Jian 'an (2 19), just after Cao Cao withdrew from Hanzhong, Guan Yu, the general of Liu Bei, attacked Xiangfan, his southeast defense line, from Jingzhou. After a fierce battle, Guan Yu lost. Soon, Lv Meng successfully captured Jiangling. Guan Yu retreated to Yizhou and was captured and killed by Sun Quanjun on the way. Sun Quan sent Guan Yu's head to Xuchang, and Cao Cao was buried as a vassal. The battle of Xiangfan ended.
Extended data:
At the end of the Eastern Han Dynasty, in the face of chaos in the world, he conquered all directions in the name of Emperor Liu Xie of the Han Dynasty, eliminated the separatist forces such as Er Yuan, Lu Bu, Liu Biao, Ma Chao and Han Sui at home, surrendered the southern Xiongnu, Wu Huan and Xianbei abroad, unified the northern part of China, expanded reclamation, built water conservancy projects, rewarded agriculture and mulberry, attached importance to handicrafts, resettled refugees, and implemented ".
In the 18th year of Jian 'an (2 13), Wang Wei was established, and the state of Wei was established, with Yecheng as its capital. In the 21st year of Jian 'an (2 16), Wang Wei was conferred, ranking above all kings.
In the 25th year of Jian 'an (15, March 220), Cao Cao died of illness and posthumous title was buried in Gaoling. His son Cao Pi proclaimed himself emperor and pursued the title of emperor. Posthumous title became a martial artist, with the temple name Mao. Cao Cao likes to express his political ambitions and reflect the sufferings of people's livelihood with poems. He is a representative figure in the literature of the Eastern Han Dynasty, and is praised by Lu Xun as "the founder of reforming articles". He was good at calligraphy and was praised as "a must" by Zhang Huaiguan in Tang Dynasty.