ABSTRACT
Whenever mobilizing the army to attack an enemy, you must know where the battle will occur. On the day the army arrives, if you can compel the enemy's forces to advance at the right moment, when you engage in battle 93you will be victorious. When you know the day for battle, your preparations will be unified and your defenses solid. A tactical principle from the Art of War states: "If one knows the field of battle and knows the day of battle, he can traverse a thousand miles and assemble to engage in combat."
