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The Art of War
Chapter 4 · 2 min · 4 of 13

Tactical Dispositions

A chapter summary from The Art of War by Sun Tzu.

Sun Tzu draws a sharp line between what is in your control and what is not.

— From The Art of War by Sun Tzu

Sun Tzu draws a sharp line between what is in your control and what is not. "The good fighters of old first put themselves beyond the possibility of defeat, and then waited for an opportunity of defeating the enemy." Securing yourself against defeat lies in your own hands; the opportunity to defeat the enemy is provided by the enemy himself. Therefore the skilled fighter can make himself invincible, but he cannot guarantee his enemy's vulnerability — which is why "though we know how to win, we cannot necessarily do it."

This produces the chapter's defining pairing: "Security against defeat implies defensive tactics; ability to defeat the enemy means taking the offensive." One defends when strength is inadequate and attacks when it is abundant. The general skilled in defense hides "in the most secret recesses of the earth"; the one skilled in attack flashes forth "from the topmost heights of heaven." Thus he protects himself completely and at the same time wins a complete victory.

Sun Tzu then deflates the cult of the spectacular victory. To foresee a win no better than the common crowd foresees is not the height of excellence; to lift an autumn hair is no sign of great strength; to see the sun and moon is no sign of sharp sight. "What the ancients called a clever fighter is one who not only wins, but excels in winning with ease." Because his victories are won over an enemy already beaten, he gains no reputation for wisdom and no credit for courage — the win was assured before it was fought, so it looks effortless and unremarkable.

From this comes the chapter's most practical reversal of instinct: "The victorious strategist only seeks battle after the victory has been won, whereas he who is destined to defeat first fights and afterwards looks for victory." The disciplined commander cultivates the moral law and adheres strictly to method and discipline; in this way it is in his power to control success.

Finally he lays out the chain of measurement that converts ground into outcome: Measurement owes its existence to Earth; Estimation of quantity to Measurement; Calculation to Estimation; Balancing of chances to Calculation; and Victory to Balancing. A victorious army opposed to a routed one is "as a pound's weight placed in the scale against a single grain," and the onrush of a conquering force is like "the bursting of pent-up waters into a chasm a thousand fathoms deep." The lesson for any contest is that victory is engineered in advance by position and preparation — you arrange the situation so heavily in your favor that the eventual win is merely the collapse of a decision already made.

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