The Complete Art Of War -

Prolonged campaigns exhaust treasuries and morale.

You control your own vulnerability.

Fighting in your own territory (soldiers want to run home). Facile ground: Just penetrating enemy territory. The Complete Art of War

when your forces are inadequate; attack when you have a surplus. 5. Use of Energy ( The Direct and Indirect )

Managing a large army is the same as managing a small one; it is a matter of organization and signs. Prolonged campaigns exhaust treasuries and morale

Neither side will gain by making the first move.

Maneuvering an army is difficult because you must turn the devious into the direct and misfortune into gain. The Complete Art of War

Information is the ultimate weapon. You cannot know the enemy without active intelligence.