In all fighting, the direct method may be used for joining battle, but indirect methods will be needed in order to secure victory.
Sun TzuIt is imperative to contest all factions for complete victory, so the army is not garrisoned and the profit can be total. This is the law of strategic siege.
Sun TzuHe who wishes to fight must first count the cost. When you engage in actual fighting, if victory is long in coming, then men's weapons will grow dull and their ardor will be dampened. If you lay siege to a town, you will exhaust your strength.
Sun Tzu