Liu Zhenhai's "The Secrets of the Lingwu Military Command" centers on the An Lushan Rebellion and focuses on Lingwu, a pivotal stronghold in the Tang dynasty's revival, painting a sweeping historical portrait of the empire's collapse and the struggle to survive amid chaos. In the fourteenth year of the Tianbao era, An Lushan raised his troops against the Tang. Chang'an was in danger, Emperor Xuanzong fled west to Mawei Station, and Yang Guifei met her end by a strip of white silk. Crown Prince Li Heng headed north to Lingwu, where he relied on the Shuofang Army's strength to ascend the throne. Guo Ziyi and Li Guangbi rallied their troops there and swore to retake the two capitals. The book delves into historical details: the rise and decline of the Tang military system, Lingwu's strategic value as a place where the Yellow River served as a moat and the Helan Mountains as a shield, An Lushan's wolfish ambition, Yang Guozhong's disastrous grip on power, and acts of loyalty such as Yan Gaoqing's martyrdom and Zhang Xun's defense of Yongqiu. Drawing on meticulous research, the author restores both the grandeur of the High Tang and the desolation of a chaotic age. From palace power struggles to flashing blades on the battlefield, from the Lingwu navy's formations of ships to the Qixi Festival's folk customs, readers can touch the realities of the Tang dynasty in turmoil. The book combines the weight of history with the rise and fall of ordinary people swept along by their times, making it a historical masterpiece rich in both source material and dramatic tension.