Qin annexed Zhao (referring to Zhao being compelled by Qin’s might), and turned its face toward Yan to the north. When the King of Yan heard of this, he sent an envoy to congratulate the King of Qin. On the way, the envoy passed through Zhao, where the King of Zhao detained him. The envoy said, “The annexation of Zhao by Qin is precisely the reason Yan congratulates Your Majesty. It would be wiser for Your Majesty to ally with Yan against Qin. Now, by detaining me, you are but aiding Qin in attacking Yan.” The King of Zhao, finding the words reasonable, released the envoy. Upon returning and reporting to the King of Yan, the latter was overjoyed and forthwith formed a vertical alliance with Zhao. When the King of Qin heard of this, he flew into a rage and dispatched troops to attack Zhao. The King of Zhao, struck with fear, sent an envoy to persuade the King of Qin, saying, “Formerly, Yan and Zhao were as brothers. Now that Your Majesty seeks to swallow up the feudal lords, I have thus caused Yan to serve Zhao, never daring to betray Qin. Should Your Majesty withdraw the troops, I am willing to have Yan become an outer vassal of Qin, offering gold and silk each year.” The King of Qin consented, and only then was Zhao relieved of the threat of war.
💡 商战启示录
This stratagem embodies the wisdom of "leveraging momentum" and "deflecting pressure" in commercial negotiations. When the Yan envoy was detained, he remained neither servile nor aggressive, astutely pointing out that King Zhao's detention of him would in effect "aid Qin in attacking Yan"—transforming his own predicament into a perceived threat to Zhao's strategic interests, compelling King Zhao to recalculate his gains and losses. This mirrors the modern business scenario where a supplier, facing price suppression by a major client, refrains from direct supplication and instead reminds the other party: "If I go bankrupt, your supply chain collapses, and your competitors reap the benefit"—thereby reversing the negotiating position. King Zhao's subsequent "submission" to Qin is a quintessential "delaying tactic": first stabilizing the formidable adversary through the posture of an "outer vassal," buying time to reorganize alliances—much like a company facing a giant's onslaught that first accepts a merger or licensing agreement, accumulates resources, and then seeks independence anew. King Qin's ready acceptance of Zhao's "loyalty" also serves as a cautionary tale for modern enterprises: in merger negotiations, if one only heeds surface commitments while overlooking the other party's hidden potential for coalition-building, one may sow the seeds of future counterattack. In sum, this passage demonstrates the "rebinding of the chain of interests"—when direct confrontation proves disadvantageous, reshaping the landscape by altering the counterparty's stakes represents the highest order of strategic maneuvering in commercial warfare.