ABSTRACT
Whenever engaging an enemy in battle, if the roads are impassable, preventing the movement of provisions and supplies, your plans cannot inveigle the enemy, nor can proffered advantages and threatened harm confuse them; then you must employ orthodox troops. For an orthodox army you must train the officers and troops well, make the weapons advantageous, ensure that the rewards and punishments are clear, and make certain that edicts and commands are trusted. If you then engage in combat and advance, you will be victorious. A tactical principle from the Questions and Replies states: "Without orthodox troops, how can one venture out far?"
