Comprehensive Reflections to Aid in Governance
By Sima Guang
Translated By Yiming Yang
Annals of Han Book 13 Scroll 21 (continued)

The 1st year of Emperor Wu’s Tianhan Era (100 B.C.)
In January of the spring, the Emperor embarked on an excursion to Ganquan Palace, performing the suburban sacrifices at Five Deities Altar. In March, he proceeded to Hedong, offering sacrifices to the Earth Deity.
The Emperor praised Xiongnu Chanyu for his righteousness. He sent General of Household Su Wu to escort the Xiongnu envoys who came to the court back to the Xiongnu, and offered substantial gifts to the Chanyu as a response to his goodwill. Su Wu was accompanied by his deputy, General of Household Zhang Sheng, as well as valet Chang Hui and others. Once they reached the Xiongnu territory, they presented the gifts to the Chanyu. However, the Chanyu became more insolent, which was not what the Han had hoped for.
Gou Wang(Hunye King’s nephew), Yu Chang from Changshui tribe, and Wei Lǜ, together with those who surrendered under the command of Wei Lǜ, secretly conspired to abduct Chanyu’s mother, Yanzhi, and bring her back to the Han. Wei Lǜ, whose father was originally an aboriginal Xiongnu from the Changshui tribe, was a good friend of the Commandant of Harmony Tune (court music instrument tuner)Li Yannian. Li Yannian recommended Wei Lǜ as ambassador to Xiongnu. Wei Lǜ went to the Xiongnu, but upon learning that Li Yannian’s family was detained on his way back, Wei Lǜ fled and surrendered to the Xiongnu. The Chanyu admired him and involved him in state affairs, eventually establishing him as King of Dingling.
While Yu Chang was in the Han court, he had a prior acquaintance with the Deputy Envoy Zhang Sheng. In private, Yu Chang told Zhang Sheng, “I heard that the Han Emperor hated Wei Lǜ. I am capable of assassinating Wei Lǜ with a hidden crossbow for the Han. My mother and brother are in Han; hopefully, they will receive rewards.” Zhang Sheng agreed and awarded Yu Chang with goods.
A month later, during a hunting trip by the Chanyu where only Yanzhi and her children remained behind, Yu Chang and around seventy others intended to carry out their plan. However, one person among them fled during the night and reported their plan to the Chanyu’s sons, who then mobilized troops and fought against Gou Wang and the others. Gou Wang and the conspirators died, but Yu Chang was captured alive.
The Chanyu ordered Wei Lü to handle the case. When Zhang Sheng learned of this, fearing the exposure of their previous conversation, he informed Su Wu. Su Wu said, “As it happens like this, it will certainly implicate me. To be accused of crimes as an ambassador is an insult to the state.” He wanted to commit suicide, but Zhang Sheng and Chang Hui stopped him.
Yu Chang indeed implicated Zhang Sheng. The Chanyu was furious and summoned his nobles to discuss killing the Han envoys. Left Yizhizi King said, “What would be the penalty for plotting against the Chanyu, if we kill the envoy for plotting against Wei Lǜ? It’s better to force them all to surrender.”
The Chanyu sent Wei Lü to pass his words to Su Wu. Su Wu said to Chang Hui and others, “To compromise my integrity and endure this humiliation, even if I live, how can I face the Han?” He drew his dagger and stabbed himself.
Wei Lü, startled, held Su Wu and rushed to summon a doctor, dug a pit in the ground, lit a charcoal fire, and placed Su Wu above it, pressing on his back to extract blood. Su Wu lost consciousness, but after half a day, he regained consciousness. Chang Hui and others wept as they escorted Su Wu back to camp. The Chanyu admired Su Wu‘s character, sent people to inquire about Su Wu‘s condition morning and night, and imprisoned only Zhang Sheng.
Su Wu‘s health improved, and the Chanyu sent messengers to inform him, expressing a desire for him to surrender. During sentencing of Yu Chang, they intended to use this opportunity to persuade Su Wu to surrender. After beheading Yu Chang with a sword, Wei Lü stated, “The Han envoy Zhang Sheng plotted to assassinate a close advisor of the Chanyu. He deserves death, but the Chanyu offers amnesty to those who surrender.”
When Wei Lü raised his sword to strike, Zhang Sheng pleaded for surrender. Wei Lü said to Su Wu, “The deputy ambassador is guilty, and you are both co-conspirators.”
Su Wu replied, “There was no conspiracy, and he’s not my relative. Why am I implicated?”
Wei Lü raised his sword again, and Su Wu remained unmoved. Wei Lü continued, “Mr. Su, I previously betrayed the Han to join the Xiongnu, received great favor, was given a king title, and amassed tens of thousands of followers and countless horses, enjoying such wealth and status! If you surrender today, tomorrow will be the same for you. If not surrendering, You would waste away in the wilderness, and who would know about it?”
Su Wu remained silent. Wei Lü said, “If you surrender because of me, we’ll be brothers. If you don’t listen to my advice now, even if you wish to see me later, will it be possible?”
Su Wu cursed Wei Lü, “As a subject, you disregard loyalty and righteousness, betray your lord and family, and surrender to barbarians! How can you face anyone? The Chanyu trusts you, letting you decide life and death, but instead of being fair and just, you instigate between two lords, watching disaster unfold. When the Nanyue killed Han envoys, they were exterminated; when the King of Dayuan killed Han envoys, his head was hung at the northern gate; when Gojoseon killed Han envoys, they were swiftly wiped out; only the Xiongnu haven’t faced this fate yet. If you know I won’t surrender, you still push to instigate conflict between the two nations, the calamity of the Xiongnu will start with my death.”
Wei Lü realized Su Wu wouldn’t be coerced, reported to the Chanyu, and the Chanyu grew more eager for his surrender. They confined Su Wu in a deep pit, cutting off food and drink. During a snowfall, Su Wu lay down, chewing snow and eating wool on his jacket, surviving for several days. The Xiongnu believed him to be divine, relocating him to a deserted place by the Northern Sea(Lake Baikal), allowing him to shepherd only male goats, saying, “Only when the male goats produce milk can you return.” They dispersed Su Wu‘s subordinates, including Chang Hui, to various locations.
White curly wools fell from the sky.
During the summer, there was a severe drought.
In May, a general amnesty was declared throughout the country.
Convicts were sent out to the border garrisons in Wuyuan commandery as a form of punishment and exile.
Zhao Ponu, the Marquis of Zhuoye, escaped from the Xiongnu and returned to the Han.
In this year, Wang Qing, the Prefect of Ji’nan, was appointed as the Grand Master of Censorate.
The 2nd year of Emperor Wu’s Tianhan Era (99 B.C.)
In spring, the Emperor traveled to the East Ocean. On his way back, he took Huizhong road.
In May of summer, Ershi General, Li Guangli, was dispatched with thirty thousand cavalry from Jiuquan. They attacked the Right Tuqi King of Xiongnu at the Tianshan Mountains, capturing more than ten thousand enemy soldiers before returning. The Xiongnu trapped Ershi General in a siege, causing a shortage of food in the Han army for several days, resulting in numerous casualties.
Acting as the Marshal, Zhao Chongguo from Longxi led over a hundred men to break the siege and breach the enemy lines. Ershi General followed Zhao Chongguo with his forces, successfully breaking the siege. However, around sixty to seventy percent of Han soldiers died, and Zhao Chongguo sustained more than twenty wounds. Upon reading Ershi General‘s report, the Emperor summoned Zhao Chongguo to the court, personally examined his cuts and bruises, expressed sorrow for his condition, and appointed him as the Gentleman of Household.
The Han court once again sent Yinyu General Gongsun Ao to venture out from the Xihe and join forces with Qiangnu[Strong Crossbow] General, Lu Bode, at Zhuotu Mountain, but they achieved no significant gains.








