This is Explanation Six from Han Feizi: Inner Congested Sayings, Part II. Han Fei reveals a political law: a foe’s deadliest attack is not military invasion, but espionage and stratagems to manipulate a ruler’s official appointments. Enemies seek to muddle the ruler’s judgment and steer his decisions astray.
This article interprets Sun Tzu’s idea of building favorable strategic momentum via the Battle of Changping. Qin secured victory through diplomacy, logistics and psychological tricks before Bai Qi’s final strike, proving momentum shapes decisive wins.
Chapter 47 of Romance of the Three Kingdoms – titled “Kan Ze Delivers the Surrender Letter; Pang Tong Proposes the Linked Ships Stratagem” – marks the culmination of a meticulously woven tapestry of deception that sets the stage for the Battle of Red Cliffs.