Unless you know the mountains and the forests, the defiles and impasses, the lay of the marshes and swamps, you cannot maneuver with an armed force. Unless you use local guides, you cannot get the advantages of the land.
Sun Tzuthe leader of armies is the arbiter of the people's fate, the man on whom it depends whether the nation shall be in peace or in peril.
Sun TzuIf an enemy has alliances, the problem is grave and the enemy's position strong; if he has no alliances, the problem is minor and the enemy's position weak.
Sun Tzu