Yong Ying were a type of regional army that emerged in the 19th century in the Qing dynasty army, which fought in most of China's wars after the Opium War and numerous rebellions exposed the ineffectiveness of the Manchu Eight Banners and Green Standard Army. The Yong Ying were created from the earlier tuanlian militias.

The Eight Banners were administrative and military divisions under the Later Jin and Qing dynasties of China into which all Manchu households were placed. In war, the Eight Banners functioned as armies, but the banner system was also the basic organizational framework of all of Manchu society. Created in the early 17th century by Nurhaci, the banner armies played an instrumental role in his unification of the fragmented Jurchen people and in the Qing dynasty's conquest of the Ming dynasty.