This hub maps the Chinese military tradition of unorthodox (ch'i / qi) warfare as documented across three millennia — from the Spring and Autumn ambush-and-deception precursors, through Sun-tzu's formal zheng/qi (orthodox/unorthodox) duality, the canonical commander-cases studied for two thousand years, the theoretical encyclopedias of the Sung through Ch'ing, the vernacular-novel transmission of stratagems, and the PRC's modern revitalization of the whole corpus as Unrestricted Warfare.