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[Literally, "get the advantage of the ground," which means not

only securing good positions, but availing oneself of natural

advantages in every possible way. Chang Yu says: "Every kind of

ground is characterized by certain natural features, and also

gives scope for a certain variability of plan. How it is possible

to turn these natural features to account unless topographical

knowledge is supplemented by versatility of mind?"]

6. So, the student of war who is unversed in the art of war of

varying his plans, even though he be acquainted with the Five

Advantages, will fail to make the best use of his men.