"Master, tell us more about the wonders of this sixteen-character formula!" Zha Zhonggao rubbed his hands together, his eyes flashing with excitement. The surrounding officers also perked up their ears, and a few of the younger ones even unconsciously shifted their weight forward.
Xia Huai'an smiled faintly, picked up a command pointer, and tapped it lightly against the sand table. "This sixteen-character formula consists of four phrases. The first is: 'The enemy advances, we retreat.'"
His voice was steady and carried a measure of composure. "This means we must avoid the enemy's main strength and strike at their weaknesses. If Prince Chuangnan leads an army of two hundred thousand to press down on our borders, tell me, what should we do?"
Chapter 151