01Supreme importance of strategy
Sun Tzu emphasizes that strategy, not brute force, determines victory. The highest form of generalship is to outthink the opponent.
Evidence: 'All warfare is based on deception.' (Ch. 1) 'To fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting.' (Ch. 3)
02Knowledge as key to victory
Knowing oneself, the enemy, and the environment is essential. He advocates extensive intelligence and reconnaissance.
Evidence: 'If you know the enemy and know yourself, you need not fear the result of a hundred battles.' (Ch. 3) 'The whole secret lies in confusing the enemy, so that he cannot fathom our real intent.' (Ch. 7)
03Deception and surprise
Feigning weakness, attacking unexpected points, and creating false appearances are fundamental tactics.
Evidence: 'When able to attack, we must seem unable; when using our forces, we must seem inactive; when we are near, we must make the enemy believe we are far; when far, we must make him believe we are near.' (Ch. 1)
04Adaptability and flexibility
Rigid plans fail; commanders must adapt to changing conditions on the ground.
Evidence: 'Just as water retains no constant shape, so in warfare there are no constant conditions.' (Ch. 6) 'He who can modify his tactics in relation to his opponent and thereby succeed in winning, may be called a heaven-born captain.' (Ch. 6)
05Leadership and discipline
A general must be wise, humane, strict, and maintain order. Proper rewards and punishments are crucial.
Evidence: 'The general must be the first in the toils and fatigues of the army.' (Ch. 10) 'Regard your soldiers as your children, and they will follow you into the deepest valleys; look upon them as your own beloved sons, and they will stand by you even unto death.' (Ch. 10) However, if too indulgent, they become like 'spoilt children.'
06Importance of terrain and positioning
Victory often depends on choosing advantageous ground and controlling the battlefield.
Evidence: 'All armies prefer high ground to low and sunny places to dark.' (Ch. 11) 'Study the ground and take advantage of it.' (Ch. 10)
07Speed and economy of force
Prolonged war drains resources. Victory should be swift, and the army should be nimble.
Evidence: 'There is no instance of a country having benefited from prolonged warfare.' (Ch. 2) 'Speed is the essence of war.' (Ch. 11)