Su Wu (140 BC - 60 BC ) was a diplomat

Diplomat

A diplomat is a person appointed by a state to conduct diplomacy with another state or international organization. The main functions of diplomats revolve around the representation and protection of the interests and nationals of the sending state, as well as the promotion of information and...

 and statesman

Statesman

A statesman is usually a politician or other notable public figure who has had a long and respected career in politics or government at the national and international level. As a term of respect, it is usually left to supporters or commentators to use the term...

 during China's Han Dynasty

Han Dynasty

The Han Dynasty was the second imperial dynasty of China, preceded by the Qin Dynasty and succeeded by the Three Kingdoms . It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han. It was briefly interrupted by the Xin Dynasty of the former regent Wang Mang...

, well known in Chinese history for his faithfulness to his mission and his empire.

Mission to Xiongnu

Not much is known about Su's early life or career. The first reference to him was the incident that he is most well known for—a mission to Xiongnu

Xiongnu

The Xiongnu were ancient nomadic-based people that formed a state or confederation north of the agriculture-based empire of the Han Dynasty. Most of the information on the Xiongnu comes from Chinese sources...

 that would turn out to be drastically more trying and lengthy than anyone would have expected.

In 100 BC, there was a short-lived détente

Détente

Détente is the easing of strained relations, especially in a political situation. The term is often used in reference to the general easing of relations between the Soviet Union and the United States in the 1970s, a thawing at a period roughly in the middle of the Cold War...

 between long-term adversaries Han and Xiongnu. One year earlier, in 101 BC, there had been a new chanyu

Chanyu

Chanyu , was the title used by the nomadic supreme rulers of Middle and Central Asia for 8 centuries, starting...

 who came into power in Xiongnu—Chanyu Qiedihou (且鞮侯), who had expressed interest in peace with Han and who, as a goodwill gesture, had allowed some Han diplomats who had been detained by Xiongnu to return to Han, along with gifts from the chanyu.

In response, in 100 BC, Emperor Wu

Emperor Wu of Han

Emperor Wu of Han , , personal name Liu Che , was the seventh emperor of the Han Dynasty of China, ruling from 141 BC to 87 BC. Emperor Wu is best remembered for the vast territorial expansion that occurred under his reign, as well as the strong and centralized Confucian state he organized...

 commissioned Su, then the deputy commander of the imperial guards, to serve as an ambassador to Xiongnu. His deputy was fellow deputy commander Zhang Sheng (張勝), and the third in command was Chang Hui (常惠). However, once they arrived at the Xiongnu chanyu's headquarters, Chanyu Qiedihou was far more arrogant than expected, which angered Zhang. In response, Zhang plotted with two Xiongnu officials, the Prince of Gou (緱王) and Yu Chang (虞常), to assassinate Chanyu Qiedihou's half-Chinese advisor Wei Lü (衛律) and kidnap the chanyu's mother.

The Prince of Gou and Yu Chang carried out their plot while the chanyu was away on a hunt, but someone alerted the chanyu, who quickly returned and killed the Prince of Gou in battle and captured Yu. Yu admitted to plotting with Zhang. Zhang, alarmed, informed Su, who had been unaware of Zhang's plot. Aware that the chanyu was planning on forcing him to surrender to Xiongnu, Su tried to preserve his dignity by committing suicide with his sword. Wei, who had wanted Su to surrender and become an advisor to the chanyu as well, quickly summoned doctors and barely saved Su's life. Chanyu Qiedihou, impressed with Su's heroism, also sent messengers to care for Su's recovery, while putting Zhang and Chang under arrest.

After Su recovered, Chanyu Qiedihou decided to publicly executed Yu as an example and to force the entire Han mission to surrender. Zhang became apprehensive and surrendered. Su, however, was not shaken even when Wei put his sword onto Su's neck, and tried also to reason that as the chanyu's advisor, he would be greatly honored. Su rebuked him for his faithlessness to Han and refused to surrender.

Life in exile

Unable to force Su to surrender, Chanyu Qiedihou decided to try to torture him by starvation, and so put him in a cellar without food and drink. However, for several days, Su survived by consuming wool from his coat and the snow that fell into the cellar. The chanyu was further surprised and thought that the gods were protecting him. The chanyu then exiled him to Lake Baikal

Lake Baikal

Lake Baikal is the world's oldest at 30 million years old and deepest lake with an average depth of 744.4 metres.Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the...

 and ordered him to tend a flock of rams—telling him that he would be allowed to go home when the rams would produce young. (It is conjectured, with some evidence based on correspondence later between Su and Li Ling that the chanyu gave Su a Xiongnu wife, and she bore him children.)

During exile, Su often lacked food, as the food supplies coming from the Xiongnu headquarters were not arriving steadily. He often had to resort to eating grass roots and wild rodents. Regardless of the difficulties, however, Su always held onto the imperial staff (節) given to all imperial messengers, and he used it as the shepherd's rod—that the decorative hairs on the staff eventually all fell off.

Twice, during exile, the chanyu sent Li Ling, who had surrendered to Xiongnu after being defeated on the battlefield in 99 BC, to visit Su. The first time, Li informed Su that his two brothers had both been accused of crimes and committed suicide; that his mother had died; and that his wife had remarried. He tried to convince Su to surrender, but Su refused. On the second occasion, Li informed him of Emperor Wu's passing, and Su was so despondent that in mourning that he vomited blood. When the Emperor of Han died, he faced south and wept in utter sadness.

Return to Han

In 81 BC, Han was again in a détente with Xiongnu, when Han ambassadors inquired of Su's fate. The Xiongnu government claimed that Su had long died. However, Su's old assistant Chang Hui secretly informed the ambassadors of Su's exile, and the ambassadors, under Chang's suggestion, told then-chanyu Huyandi (壺衍鞮) that Emperor Zhao

Emperor Zhao of Han

Emperor Zhao of Han was an emperor of the Chinese Han Dynasty from 87 BC to 74 BC.Emperor Zhao was the youngest son of Emperor Wu of Han. By the time Zhao was born, Emperor Wu was already 62. Zhao ascended the throne after the death of Emperor Wu in 87 BC. He was only 8 years old...

 had killed a migratory bird while hunting, and that a letter from Su seeking help was found on the bird's foot. Surprised, Chanyu Huyandi admitted that Su was in fact still alive, recalled him and allowed him as well as his nine followers to go home. In all, he was in exile for 19 years.

Once Su returned to Han, he was given the position of Director of Colonization (典屬國), a high-ranking official post. He remained in that post at least until the early years of Emperor Xuan

Emperor Xuan of Han

Emperor Xuan of Han was an emperor of the Chinese Han Dynasty from 74 BC to 49 BC. His life story was a riches-to-rags-to-riches story.Emperor Xuan was the great grandson of Emperor Wu...

's reign—late 70s BC. In 51 BC, when Emperor Xuan, in gratitude to 11 key officials who served him well, had their portraits painted onto the main gallery of the main imperial palace, Su was one of the 11 so portrayed.

Impact on Chinese history

Su was often regarded as the epitome of faithful service in light of great odds and trials. His story was often invoked when acts of great faith or courage were performed by officials. His story, as undetailed as it was in actual history, often became subjects of drama, poetry, and songs throughout Chinese history. Many people take him as a second Zhang Qian

Zhang Qian

Zhang Qian was an imperial envoy to the world outside of China in the 2nd century BCE, during the time of the Han Dynasty...

, who was also previously caught in the same situation, refused to surrender, and managed to escape back to Han.

Musical works

A traditional Chinese melody, "Su Wu Mu Yang" (蘇武牧羊), is based on the story of Su Wu herding sheep. It is generally played on a Chinese flute.

Reference in English

• Yap, Joseph P. ``Wars With The Xiongnu - A Translation From Zizhi tongjian`` Chapters 5-6. AuthorHouse (2009) ISBN 978-1-4490-0604-4