[Why] In early Northern Song, the historical chronic ailment of frontier-governor armed groups holding troops in self-defense was not yet uprooted. Song Taizu deeply worried that his founding veteran generals would one day re-tread the Chenqiao Mutiny path and once again don the yellow robe. [What] At a feast Zhao Kuangyin, through gentle words of persuasion, awakened founding warriors like Shi Shouxin. He exchanged generous gold and land for the founding veterans' palace-guard military power, recovered to direct central control. [Who] Song Taizu Zhao Kuangyin showed extreme political compromise wisdom, not killing the meritorious. Shi Shouxin and the other warriors complied with the situation, kept clear of trouble, voluntarily handed over military power, and were able to enjoy late life in peace. [How] This event ended the late Tang chronic illness of military-man hegemony by gentle hand and established Song's national policy of valuing civil and slighting military. It laid the long-term internal long stability foundation of civilian-official governance.
Why
The historic event of Cup of Wine to Relinquish Military Power represents a key developmental peak of the Huaxia dynastic system. Establishing the classic civilian-led governance model of the Song Dynasty. By establishing this moral or administrative benchmark, it continues to shape the structural and philosophical fabric of ancient Chinese statecraft.