All warfare is based on deception. If your enemy is superior, evade him. If angry, irritate him. If equally matched, fight and if not: split and re-evaluate.
Who can determine where one ends and the other begins?
Weigh the situation, then move.
He whose ranks are united in purpose will be victorious.
Appear at points which the enemy must hasten to defend; march swiftly to places where you are not expected.
What is essential in war is victory, not prolonged operations.