This chapter records Mozi’s talk with disciple Qin Guli on city defense. It lists twelve siege tactics and matching countermeasures, detailing fortifications, weapons, manpower allocation and fourteen essential defense prerequisites.
In Chapter 59 of Romance of the Three Kingdoms, as Cao Cao’s army faces Ma Chao and Han Sui’s coalition along the frozen banks of the Wei River, a mysterious old man named Lou Zibo (Lou Gui) suddenly appears. He advises Cao Cao to pour water over sand during a cold snap, creating instant…