卫山 / Wei Shan (Western Han)

Overview

卫山 / Wei Shan is the Western Han envoy whose near-successful negotiation with 卫右渠 collapses when reciprocal fear prevents the Joseon crown prince and his armed following from crossing the Pei River.

Current Profile

Han Wudi sends Wei Shan after both field commands fail to secure a quick victory. Ugeo offers horses, provisions, and his son as part of submission, but Wei Shan and 荀彘 fear the prince’s large armed escort and demand disarmament. The prince fears a trap in turn and withdraws. Wei Shan returns without completing the submission and is executed, a punishment Xun Zhi interprets as a signal for immediate offensive action.

Key Characteristics

• Imperial envoy inserted into a stalled military campaign to obtain submission.
• Negotiator who secures an offer involving material tribute, supplies, and the ruler’s son.
• Participant in a security demand that converts near-agreement into renewed resistance.
• Agent caught inside reciprocal fear rather than a simple absence of willingness to surrender.
• Executed after failure, with the punishment altering the field commander’s reading of imperial intent.

Evidence

• Near-agreement: Hanji 366-1 says Ugeo offers submission, horses, provisions, and his son.
• Security breakdown: Hanji 366-1 says Wei Shan and Xun Zhi demand disarmament, while the prince fears being killed and turns back.
• Punishment signal: Hanji 366-1 says Wudi executes Wei Shan and Xun Zhi then presses the attack.

Qualifications

The source does not establish that either side’s fear was fabricated or irrational: an armed escort posed a security problem, while the preceding killing of a Joseon officer gave the prince reason to fear a trap. The exact legal basis for Wei Shan’s execution and the private reasoning of Han Wudi are not supplied.

What Changed

• Created Wei Shan’s profile as a failed-surrender intermediary whose punishment changes field behavior.

Relationships

• 卫右渠 - opposing ruler who offers submission through Wei Shan.
• 荀彘 - field commander who joins the disarmament demand and reads Wei Shan’s death as an attack signal.
• 汉武帝 - ruler who sends and later executes Wei Shan.
• 涉何 - earlier envoy whose violent mission helps define the trust deficit surrounding the later negotiation.
• 军令同步失灵 - negotiation case where security protocol and political intent fail to align.