Li Huailin, an instructor at the modern Army General Staff College, accidentally traveled to Yuan Shao's camp in the late Eastern Han Dynasty during a military exercise. When he appeared in the smoke and dust of the Battle of Jieqiao in camouflage uniforms, he faced the Quyi tribe who was about to be defeated and the princes of Hebei who were full of doubts about him. There is no system cheat, only modern war theory and staff literacy in the mind. He made precise suggestions based on terrain calculations and troop deployment, from relieving the siege of Baima to reshaping the Guandu defense line, injecting modern military thinking into the decadent warlord system of the late Han Dynasty. In the intrigues of the Hebei Group, he not only had to deal with the factional strife of Guo Tu and Shen Pei, but also turned the farmland system, the prototype of the general staff and other ideas into reality. Finally, he assisted Yuan Shao to integrate the four states of Hebei, sent his troops south to rewrite the pattern of the Three Kingdoms, and created an iron-blooded legend for modern soldiers on the battlefield in the cold weapon era.
