The Art of War · Chapter
X: Terrain explained
Sun Tzǔ classifies six types of terrain—accessible, entangling, temporizing, narrow passes, precipitous heights, and distant positions—and explains how to handle each.
What happens
Sun Tzǔ classifies six types of terrain—accessible, entangling, temporizing, narrow passes, precipitous heights, and distant positions—and explains how to handle each. He then lists six calamities arising from a general's faults: flight, insubordination, collapse, ruin, disorganization, and rout. The chapter emphasizes knowing the enemy, oneself, and the ground to achieve complete victory, and stresses the general's duty to fight only when victory is certain, regardless of the ruler's orders.
Themes in this chapter
Strategic Use of Terrain and Environment
The entire chapter is devoted to classifying terrain types and prescribing tactics for each, showing how ground shapes battle outcomes.
Leadership and Discipline
The six calamities are directly linked to a general's faults, and the text stresses the need for clear orders, authority, and care for soldiers.
Self-Knowledge and Preparation
The closing lines emphasize knowing oneself, the enemy, and the ground to achieve complete victory.
Characters to notice
- Sun Tzǔ
Author of the chapter, defining six kinds of terrain and six calamities, and emphasizing the general's responsibility.
Key passages
“If fighting is sure to result in victory, then you must fight, even though the ruler forbid it; if fighting will not result in victory, then you must not fight even at the ruler’s bidding.”
A general should act decisively based on the certainty of victory, overriding even the ruler's orders if necessary.
Highlights the general's autonomy and moral duty to the state over blind obedience.
“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.”
Treat soldiers with paternal care to earn their loyalty and sacrifice.
Emphasizes the bond between commander and troops as a key to morale and discipline.
“If you know the enemy and know yourself, your victory will not stand in doubt; if you know Heaven and know Earth, you may make your victory complete.”
Complete victory requires understanding both the enemy and your own forces, as well as the natural and environmental factors.
Summarizes the chapter's core wisdom on comprehensive knowledge for success.