Art of War Chapter 3: Attack by Stratagem — 谋攻 Explained

The Hierarchy of Victory

Chapter 3 presents Sun Tzu's most famous hierarchy of strategic success. 'The supreme art of war is to subdue the enemy without fighting.' Below this ideal, in descending order, come: breaking the enemy's alliances through diplomacy, attacking the enemy's army in the field, and only as a last resort, besieging fortified cities.

This hierarchy reveals Sun Tzu's core philosophy: the best victory is one that requires no battle at all. Siege warfare is at the bottom because it is costly, time-consuming, and uncertain. 'To besiege a fortified city is the last resort' — it requires special equipment, enormous labor, and months of preparation, all while the enemy's allies may arrive.

The reasoning is pragmatic, not idealistic. Every battle carries risk. Even a certain victory consumes resources you will need later. The commander who achieves the objective without fighting has executed the perfect campaign. This principle — achieving goals with minimum cost and risk — is the essence of strategic thinking.

Know Your Enemy, Know Yourself

Chapter 3 contains the most famous line in the Art of War: 'If you know the enemy and know yourself, you need not fear the result of a hundred battles.' This is often quoted but rarely understood in its full strategic context. The line is preceded by a detailed framework for assessing when to fight and when to avoid battle.

Sun Tzu identifies five conditions for knowing when you can fight: when you know when to fight and when not to, when you know how to handle both superior and inferior forces, when your army has unity of purpose, when you are prepared and the enemy is not, and when your generals are competent and the ruler does not interfere.

The deeper point is that knowledge transforms uncertainty into risk you can manage. The unknown is terrifying; the known, however unfavorable, can be planned for. This is why Sun Tzu insists on intelligence, assessment, and preparation before any action. The general who goes into battle without knowing the enemy and himself is gambling.

Modern Application

The hierarchy of victory applies directly to negotiation and competitive strategy. The best outcome is achieving your objective without a direct confrontation — through alliance, persuasion, or restructuring the situation. The second best is winning through limited engagement. The worst outcome is a costly head-to-head battle that exhausts both sides.

The principle of knowing yourself and your opponent is the foundation of competitive analysis in business, politics, and personal development. Most strategic failures are not caused by a superior opponent but by self-deception about one's own capabilities. Honest assessment — of both strengths and weaknesses — is the prerequisite for any sound strategy.

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