Cao Cao

Conquest of Yan Province (191–195)

Through short-term and regional-scale wars, Cao Cao continued to expand his power. In 191, Cao Cao was appointed Administrator of Dong commandery (Dongjun) in Chenliu. This happened after he successfully fought against the bandit chieftain Bo Rao, and Yuan Shao named him Administrator in the stead of the ineffectual Wang Hong. He cleared Dong of bandits, and when the Inspector of Yan Province Liu Dai died the following year, he was invited by Bao Xun and other officers to become the Governor of Yan Province, and deal with an uprising of Yellow Turbans in Qing Province who raided Yan. Despite several setbacks, Cao Cao managed to subdue the rebels by the end of 192, likely through negotiations, and added their 30,000 troops to his army.^[8] In early 193, Cao Cao and Yuan Shao fought against the latter's cousin Yuan Shu, driving him away to the River Huai.^[8]

Cao Cao's father Cao Song was killed in autumn 193 by troops of Tao Qian, governor of Xu Province (who claimed to be innocent, and that Cao Song's murderers had been mutineers). Enraged, Cao Cao massacred thousands of civilians in Xu during two punitive expeditions in 193 and 194, to avenge his father.^[8] Because he took the bulk of his soldiers to Xu Province in order to defeat Tao Qian, most of his territory was left undefended. A number of discontented officers led by Chen Gong and Zhang Chao (Zhang Miao’s brother) plotted to rebel. They convinced Zhang Miao to be their leader, and to ask Lü Bu to come with reinforcements. Chen Gong invited Lü Bu to be the new Inspector of Yan province. Lü Bu accepted this invitation and led his soldiers into the province. Since Cao Cao’s army was away, many of the local commanders figured that fighting would be a lost cause and surrendered to Lü Bu as soon as he arrived. However three counties – Juancheng, Dong’a, and Fan, remained loyal to Cao Cao and when Cao Cao returned, he gathered his own forces at Juancheng.

Throughout 194 and 195, Cao Cao and Lü Bu fought several battles of some size for the control of Yan Province. Though Lü Bu initially did well in holding Puyang, Cao Cao won almost every engagement outside of Puyang. Cao Cao’s decisive victory came in a battle near Dongming. Lü Bu and Chen Gong led a large army to assault Cao Cao’s forces. At that time, Cao Cao was out with a small army, harvesting grain. Seeing Lü Bu and Chen Gong approaching, Cao Cao hid his soldiers in some woods and behind a dam. He then sent a small force ahead to skirmish with Lü Bu’s army. Once the two forces were committed, he unleashed his hidden soldiers. Lü Bu’s army was devastated by this attack and many of his soldiers fled.

Lü Bu and Chen Gong both fled after that battle. Since Xu province was now under Liu Bei’s command and Liu Bei had been Cao Cao’s enemy in the past, they fled to Xu for safety. Cao Cao decided not to pursue them and instead set about crushing Lü Bu’s loyalists in Yan, consolidating his hold over that province. Eighteen months after the rebellion started, Cao had destroyed Zhang Miao and his family, and regained Yan Province by the end of 195.^[8]

Securing the emperor (196)

Cao Cao moved his headquarters from Puyang to Xu city (modern Xuchang) in early 196, and built military agricultural colonies for the settlement of refugees, and supply food for his troops.^[8]

Around August 196, Emperor Xian returned to Luoyang under the escort of Yang Feng and Dong Cheng. Cao Cao joined Emperor Xian in autumn 196^[8] and convinced him to move the capital to Xu city as suggested by Xun Yu and other advisors, as Luoyang was ruined by war and Chang'an was not under Cao's military control. He was appointed Minister of Works (after negotiating with his nominal superior Yuan Shao), and Director of Retainers (司隸 Sī lì), granting him nominal control over Sili Province.^[8] Furthermore, he became General-in-Chief (大將軍) and Marquis of Wuping (武平侯), though both titles had little practical application. While some viewed the emperor as a puppet under Cao Cao's control, Cao adhered to a strict personal code until his death that he would not usurp the throne. When he was approached by his advisors to overthrow the Han dynasty and start his own dynasty, he replied, "If heaven bestows such a fate upon me, let me be King Wen of Zhou."^[9]

To maintain a good relationship with Yuan Shao, who had become the most powerful warlord in China when he united the northern four provinces, Cao Cao lobbied to have Yuan appointed Minister of Works. However, this had the opposite effect, as Yuan Shao believed that Cao Cao was trying to humiliate him, since Minister of Works technically ranked lower than General-in-Chief, and therefore refused to accept the title. To pacify Yuan Shao, Cao Cao offered his own position to him, while becoming Minister of Works himself. While this temporarily resolved the conflict, it was the catalyst for the Battle of Guandu later.

Battling Zhang Xiu, Liu Biao, and Lü Bu (197–198)

A mural showing chariots and cavalry, from the Dahuting Tomb of the late Eastern Han Dynasty (25–220 AD), located in Zhengzhou, Henan province, China

Liu Biao was a major power at that time, holding all of Jing province. Jing had always been prosperous, but it had grown in size because many people fled from the northern wars and sought refuge there. Therefore, Liu Biao constituted a danger to Cao Cao. Zhang Xiu commanded Liu Biao’s territory on the border with Cao Cao, so Cao Cao went to attack him. In 197 Zhang Xiu surrendered to Cao Cao but later attacked his camp in the night (the Battle of Wancheng), killing many people and forcing Cao Cao to flee.

After taking a few months to recover, Cao Cao attacked Yuan Shu’s forces at Ku, claiming more of the man’s land.

Later in 197, Cao Cao returned south to attack Liu Biao/Zhang Xiu once more. This time, Cao Cao was very successful and greatly damaged their army. Cao Cao attacked Zhang Xiu again in 198 leading to the Battle of Rangcheng and was again victorious. He ultimately retreated from this campaign because he received word that Yuan Shao was planning to march on Xu, though this report turned out to be in error.

In April 198, Cao Cao sent envoys to incite the western warlords to attack Chang'an, still controlled by Dong Zhuo's successor Li Jue. One of Li Jue's subordinates, Duan Wei (段煨), mutinied and killed Li Jue along with his family in the summer of 198. Duan Wei sent Li Jue's head to Xu city (as a token of his submission to Cao Cao).^[10]

Meanwhile, Lü Bu was growing more aggressive. He drove Liu Bei out of his territory again and allied with Yuan Shu – who had now declared himself Emperor of Zhong. Since Zhang Xiu had recently been crushed, he was in no position to be a threat in the south, so Cao Cao went east to deal with Lü Bu.

Conquest of Xu and Yu Provinces (199)

Cao Cao defeated Lü Bu in numerous battles and eventually surrounded him at Xiapi. Lü Bu tried to break free but could not do so. Ultimately, many of his officers and soldiers defected to Cao Cao. Some were kidnapped by defectors. Lü Bu grew disheartened and surrendered to Cao Cao, who executed him on 7 February 199.^{[lower-alpha 1]} By eliminating Lü Bu, Cao had obtained effective control of Xu Province.^[8]

With Lü Bu gone, Cao Cao set about dealing with Yuan Shu. He sent Liu Bei and Zhu Ling south to attack Yuan Shu. However, the false emperor died in the summer of 199 before Liu Bei and the others arrived. This meant Cao Cao had no major opponents in the Huai River region (Yu Province) anymore either.^[8] Meanwhile, in March 199 Yuan Shao had finally finished his war with Gongsun Zan at the Battle of Yijing, and was now planning to move south to defeat Cao Cao. Seeing this, Cao Cao set about preparing his defenses, intending to make his stand at Guandu. On the advice of Jia Xu, Zhang Xiu surrendered to Cao Cao and his forces were integrated into Cao Cao's army after they rejected an envoy from Yuan Shao to ally.

Liu Bei's betrayal and defeat

Near the end of the year 199, Liu Bei betrayed Cao Cao and killed his commanders in Xu Province, claiming to own the province. Cao Cao wanted to attack Liu Bei quickly so as to not get into a two-front war and while some in the court were worried that Yuan Shao would attack them soon if the main army were east, Guo Jia assured Cao Cao that Yuan Shao would be slow to react, and that Cao Cao could handle Liu Bei if he did it quickly. So on Guo Jia's advice, Cao Cao attacked Liu Bei and utterly defeated him in Xu Province, capturing Guan Yu as well as Liu Bei's family members at the start of 200. Liu Bei himself fled to Yuan Shao, who only sent a part of his army to make an attack on Cao Cao. This incursion was stopped by Yu Jin at the Battle of Dushi Ford in February 200, marking the outbreak of open warfare between Cao and Yuan.

War with the Yuan clan

China's provinces in 199:   Cao Cao   Yuan Shao   Others	Cao Cao's conquests 207–215:   Cao Cao (206)   Acquisitions   Others

In 200, Yuan Shao amassed more than 100,000 troops and marched southwards on Xuchang in the name of rescuing the emperor. Cao Cao gathered 20,000 men in Guandu, a strategic point on the Yellow River. The two armies came to a standstill as neither side was able to make much progress. Cao Cao's lack of men did not allow him to make significant attacks, and Yuan Shao's pride forced him to meet Cao's force head-on. Despite his overwhelming advantage in terms of manpower, Yuan Shao was unable to make full use of his resources because of his indecisive leadership and Cao Cao's position.

Besides the middle battleground of Guandu, two lines of battle were present. The eastern line with Yuan Tan of Yuan Shao's army against Zang Ba of Cao Cao's army was a one-sided battle in favour of Cao, as Yuan Tan's poor leadership was no match for Zang's local knowledge of the landscape and his hit-and-run tactics. On the western front, Yuan Shao's nephew, Gao Gan, performed better against Cao Cao's army and forced several reinforcements from Cao's main camp to maintain the western battle. Liu Bei, then a guest in Yuan Shao's army, suggested that he instigate rebellion in Cao Cao's territories as many followers of Yuan were in Cao's lands. The tactic was initially successful but Man Chong's diplomatic skills helped to resolve the conflict almost immediately. Man Chong had been placed as an official there for this specific reason, as Cao Cao had foreseen the possibility of insurrection prior to the battle. Finally, a defector from Yuan Shao's army, Xu You, informed Cao Cao of the location of Yuan's supply depot. Cao Cao broke the stalemate by sending a special group of soldiers to burn all the supplies of Yuan Shao's army, thus winning a decisive and seemingly impossible victory.

Yuan Shao fell ill and died shortly after the defeat in 202, leaving two sons – the eldest son, Yuan Tan and the youngest son, Yuan Shang. As he had designated the youngest son, Yuan Shang, as his successor, rather than the eldest as tradition dictated, the two brothers fought each other, as they fought Cao Cao. Cao Cao used the internal conflict within the Yuan clan to his advantage and defeated the Yuans easily. Gao Gan, governor of Bing Province, defected to Cao Cao in 203. The province of Ji fell to Cao Cao in 204 after the long siege of Ye, the Yuans' capital city. In January and February 205, Cao Cao battled Yuan Tan at Nanpi, and conquered Qing Province. Gao Gan rebelled in 205, but in 206 Cao Cao defeated and killed him, annexing Bing definitively.

Cao Cao assumed effective rule over all of northern China, but Yuan Shang and Yuan Xi had fled to the Wuhuan chieftains for aid after a defect in 206 to Cao Cao. In 207, Cao Cao led a daring campaign beyond Chinese borders in hopes of destroying the Yuan’s once and for all. He fought an alliance of Wuhuan chieftains at White Wolf Mountain. Though outnumbered and isolated, Cao Cao emerged victorious. He killed a number of the Wuhuan chiefs and forced the Yuans to flee once again. This time, they went to Gongsun Kang for help, but he executed them and sent their heads to Cao Cao, granting him nominal control over You Province. Meanwhile, the northern tribes were now terrified of Cao Cao. Most of the remaining Wuhuan submitted to him, along with the Xianbei and Xiongnu.

Agriculture and education

While waging military campaigns against his enemies, Cao Cao did not forget the bases of society – agriculture and education.

In 194, a locust plague caused a major famine across China. The people resorted to cannibalism out of desperation. Without food, many armies were defeated without fighting. From this experience, Cao Cao saw the importance of an ample food supply in building a strong military. He began a series of agricultural programs in cities such as Xuchang and Chenliu. Refugees were recruited and given wasteland to cultivate. Later, encampments not faced with imminent danger of war were also made to farm. This system was continued and spread to all regions under Cao Cao as his realm expanded. Although Cao Cao's primary intention was to build a powerful army, the agricultural program also improved the living standards of the people, especially war refugees.

By 203, Cao Cao had eliminated most of Yuan Shao's forces. This afforded him more attention on construction within his realm. In autumn of that year, Cao Cao passed an order decreeing the promotion of education throughout the counties and cities within his jurisdiction. An official in charge of education was assigned to each county with more than 500 households. Youngsters with potential and talent were selected for schooling. This prevented a lapse in the training of intellectuals in those years of war, and, in Cao Cao's words, would benefit the people.

Poetry

Cao Cao cites a poem before the Battle of Red Cliffs, portrait at the Long Corridor of the Summer Palace, Beijing

Cao Cao was an accomplished poet, as were his sons Cao Pi and Cao Zhi. He was also a patron of poets such as Xu Gan.^[17] Of Cao Cao's works, only a remnant remain today. His verses, unpretentious yet profound, helped to reshape the poetic style of his time and beyond, eventually contributing to the poetry styles associated with Tang dynasty poetry. Cao Cao, Cao Pi and Cao Zhi are known collectively as the "Three Caos". The Three Caos' poetry, together with additional poets, became known as the Jian'an style, which contributed eventually to Tang and later poetry. Cao Cao also wrote verse in the older four-character per line style characteristic of the Classic of Poetry. Burton Watson describes Cao Cao as: "the only writer of the period who succeeded in infusing the old four-character metre with any vitality, mainly because he discarded the archaic diction associated with it and employed the ordinary poetic language of his time."^[18] Cao Cao is also known for his early contributions to the Shanshui poetry genre, with his 4-character-per-line, 14-line poem "View of the Blue Sea" (觀滄海).^[19]

Film and television

The "Father of Hong Kong cinema", Lai Man-Wai, played Cao Cao in The Witty Sorcerer, a 1931 comedy film based on the story of Zuo Ci playing tricks on Cao Cao. In the Shaw Brothers film The Weird Man, Cao Cao was seen in the beginning of the film with Zuo Ci. Zuo Ci was playing tricks on him by giving him a tangerine with no fruit inside. This was later referenced in another film titled Five Element Ninjas.

Other notable actors who have portrayed Cao Cao in film and television include:

• Bao Guo'an, in the 1994 Chinese television series Romance of the Three Kingdoms. Bao won two Best Actor awards at the 1995 Golden Eagle Awards and Flying Apsaras Awards for his performance.
• Damian Lau, in the 2008 Hong Kong film Three Kingdoms: Resurrection of the Dragon.
• Zhang Fengyi, in the 2008–09 Chinese film Red Cliff.
• Chen Jianbin, in the 2010 Chinese television series Three Kingdoms.
• Jiang Wen, in the 2011 Hong Kong film The Lost Bladesman and the 2018 Chinese television series Cao Cao.
• Chow Yun-fat, in the 2012 Chinese film The Assassins.
• Zhao Lixin, in the 2014 Chinese television series Cao Cao.
• Yu Hewei, in the 2017 Chinese television series The Advisors Alliance.
• Tse Kwan-ho, in the 2018 Chinese television series Secret of the Three Kingdoms.
• Wang Kai, in the upcoming Hong Kong film Dynasty Warriors.

Card games

In the selection of hero cards in the Chinese card game San Guo Sha (三国杀), there is also a Cao Cao hero that players can select at the beginning of the game.

Cao Cao is also referenced in Magic: The Gathering, as the card "Cao Cao, Lord of Wei". This card is black, the colour representing ruthlessness and ambition, though not necessarily evil. It was first printed in Portal Three Kingdoms and again in From the Vault: Legends.

Video games

Cao Cao appears in Koei's Romance of the Three Kingdoms video game series. He is also featured as a playable character in Koei's Dynasty Warriors and Warriors Orochi series. He also features in Koei's Kessen II as a playable main character.

Cao Cao also appears in Puzzle & Dragons as part of the Three Kingdoms Gods series.^[31]

Cao Cao appears as a Great Person in Civilization IV and later as a Great General in Civilization V.

Cao Cao appears in Creative Assembly's Total War: Three Kingdoms.

Other appearances

As with most of the other relevant generals of the period, Cao Cao is portrayed as a young female character in the Koihime Musō franchise. He is also the central character in the Japanese manga series Sōten Kōro. Barry Hughart's novel The Story of the Stone mentions the Seven Sacrileges of Tsao Tsao, most of which involve family.^[32]

Research on ancestry

Cao Cao was a purported descendant of the Western Han dynasty chancellor Cao Shen. In the early 2010s, researchers from Fudan University compared the Y chromosomes collected from a tooth from Cao Cao's granduncle, Cao Ding (曹鼎), with those of Cao Shen and found them to be significantly different. Therefore, the claim about Cao Cao descending from Cao Shen was not supported by genetic evidence.^[33] The researchers also found that the Y chromosomes of Cao Ding match those of self-proclaimed living descendants of Cao Cao who hold lineage records dating back to more than 100 generations ago.^[34]

Zhu Ziyan, a history professor from Shanghai University, felt that Cao Ding's tooth alone cannot be used as evidence to determine Cao Cao's ancestry. He was sceptical about whether those who claim to be Cao Cao's descendants are really so, because genealogical records dating from the Song dynasty (960–1279) are already so rare in the present day, much less those dating from the Three Kingdoms era (220–280). Besides, according to historical records, Cao Ding was a younger brother of the eunuch Cao Teng, who adopted Cao Cao's biological father, Cao Song. Therefore, Cao Cao had no known blood relations with Cao Ding. In other words, Cao Ding was not Cao Cao's real granduncle (this assuming that there was no intra-family adoption, which was actually common in China). Zhu Ziyan mentioned that Fudan University's research only proves that those self-proclaimed descendants of Cao Cao are related to Cao Ding; it does not directly relate them to Cao Cao.^[35]