Defense of the Six Gods of the Three Kingdoms: Cao Wei Built Cities to Defend Mountains and Rivers

In 194 AD, the whole territory of Yanzhou was in rebellion. Chen Gong led Lu Bu to join the state's cavalry and swept across the prefectures and counties. In the huge Yanzhou, only Puyang was left alone and helpless. Xia Houyi, a doctor of modern ancient building restoration, traveled through the troubled times of the late Han Dynasty and became an inconspicuous city guard in Cao Ying. In a desperate situation, he awakened his unparalleled inheritance and mastered the life-long city defense strategies of six famous generals including Li Mu, Lian Po, Wei Xiaokuan, Ma Sui, Hao Zhao and Zhang Xun. Outside the city, Lu Bu's army attacked fiercely day and night. They attacked through tunnels, climbed up ladders, and flooded the city. There were only five thousand remaining soldiers in the city, and all the food and grass were exhausted. All the civil and military officials in the city concluded that Puyang would be destroyed within half a month. Xia Houyi combined modern engineering architecture with ancient city-control strategies, reinforced the rammed-earth city walls, renovated the trenches of the barbicans, and laid out anti-tunnel traps. He relied on the remaining soldiers to withstand numerous general attacks by Lu Bu, and forcibly defended the last foundation of the Cao family's foundation. The end of the bloody battle in Puyang is only the beginning of the story. In the following years, he built long border barriers, established the Mingli School for poor families, suppressed the land monopoly of aristocratic families, strangled the key routes of the Wu-Shu Northern Expedition with fortified cities, and dealt with the princes of Yuan Shao, Yuan Shu, Sun Ce, and Lu Bu. All the heroes in the world are bent on competing for the throne, but Xiahou Yi is willing to become the cornerstone of the mountains and rivers in troubled times, covering the city with strong walls to protect the stability of thousands of people.