Generally, management of many is the same as management of few. It is a matter of organization. And to control many is the same as to control few. This is a matter of formations and signals.

There is no place where espionage is not possible.

Do not press an enemy at bay.

Without harmony in the State, no military expedition can be undertaken; without harmony in the army, no battle array can be formed.

The essential factor of military success is speed, that is taking advantage of others' unpreparedness or lack of foresight, their failure to catch up, going by routes they do not expect, attacking where they are not on guard. This you cannot accomplish with hesitation.

When you are ignorant of the enemy but know yourself, your chances of winning or losing are equal.

War is a matter of vital importance to the state.