King Xi of Yan sent Li Fu with a hundred pieces of gold to offer birthday congratulations to King Xiaocheng of Zhao. Li Fu feasted in Zhao for three days, and upon his return reported: "The able-bodied men of Zhao all perished in the Battle of Changping, and their orphans have not yet grown to maturity—Zhao may be attacked." The King of Yan then summoned Yue Jian, Lord of Changguo, and asked: "What do you think?" Yue Jian replied: "Zhao is a land where four thoroughfares converge; its people are well-versed in the art of war. It cannot be fought against." The King of Yan said: "If I attack with twice their numbers, may I?" Yue Jian said: "No." The King said: "With three times their numbers, may I?" Yue Jian said: "No." The King of Yan flew into a rage. All those around him held that Zhao could be attacked, and so the King hastily raised an army of six hundred thousand to strike Zhao. He ordered Li Fu to lead four hundred thousand against Hao, and dispatched Qing Qin to lead two hundred thousand against Dai. Zhao sent Lian Po with eighty thousand to meet Li Fu at Hao, and Yue Cheng with fifty thousand to confront Qing Qin at Dai. The Yan army suffered a great defeat. Yue Jian fled into Zhao. The King of Yan wrote a letter reproaching Yue Jian and offering apologies, and Yue Jian replied in turn: "I have heard that the wise do not defy the times to abandon advantage, the brave do not fear death to destroy their renown, and the loyal do not put themselves before their sovereign. Now Your Majesty, with a gift of a hundred pieces of gold, heeded slanderous words and moved to attack Zhao—I privately deem Your Majesty's plan to be in error. Zhao and Yan lie a thousand li apart, and Zhao's strength is not something Yan can match. Now Your Majesty, at the cost of a hundred pieces of gold, has opened a quarrel with mighty Zhao; I fear that the altars of Yan shall be reduced to ruins." The King of Yan, overcome with shame, thereupon apologized to Yue Jian.
💡 商战启示录
This strategy reveals the fatal risks of "misjudgment of information" and "reckless expansion" in commercial warfare. Li Fu, relying solely on surface observations—that Zhao's able-bodied men had perished at Changping—concluded that an invasion was feasible, much like a modern enterprise that, upon seeing a competitor's short-term financial fluctuation or localized market setback, rashly launches a price war or acquisition while overlooking its core competencies (such as the Zhao people's martial prowess and their strategically connected terrain) and latent resilience. Yue Jian's remark, "The wise do not defy the times nor forsake advantage," underscores that decisions must rest on comprehensive, dynamic competitive analysis rather than a narrow, one-sided view. The King of Yan staked his wager on numerical superiority—"double the forces," then "triple the forces"—yet ignored quality and organizational efficacy, akin to a company that seeks to crush rivals through sheer capital scale, only to be consumed by the backlash—as when Luckin Coffee once blindly expanded to challenge Starbucks, collapsing from its neglect of brand and operational moats. Conversely, when Huawei ventured into overseas markets, it conducted in-depth research into local regulations and demands, refusing to trust superficial short-term reports, and advanced with steady, deliberate steps. The wisdom of commercial warfare lies in this: when assessing an opponent, one should, like Yue Jian, discern its "geographic advantages" (supply chains, customer loyalty) and its "people versed in war" (talent reserves, capacity for learning), rather than being beguiled by "a longevity of a hundred gold pieces"—surface goodwill or petty gains. At the same time, leaders must tolerate remonstrance and avoid the "great wrath" that breeds arbitrary decision-making; otherwise, like the King of Yan, they will see their six hundred thousand troops routed and pay a grievous price. Modern enterprises ought to establish multi-dimensional intelligence systems and decision-making checks and balances, countering "Li Fu-style" optimistic misjudgment with "Yue Jian-style" cool analysis, so as to avert a "great defeat" in the arena of commerce.