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 instance of a nation benefiting from prolonged warfare.

The best general is the one who never fights.

Know the enemy and know yourself.

Rely not on the likelihood of the enemy's not coming, but on our own readiness to receive him

And therefore those skilled in war bring the enemy to the field of battle and are not brought there by him.

Know thy self, know thy enemy. A thousand battles, a thousand victories.