Lê Chiêu Thống
What motivated the Qing imperial government to interfere in Vietnam's domestic affairs has always been disputed. Chinese scholars claimed that the Qianlong Emperor simply wanted to restore the Lê emperor and rule all Vietnam, seeking no territorial gains. Vietnamese scholars on the other hand have argued, that Qianlong intended to make Vietnam a vassal: China would station troops in Vietnam and install Lê Chiêu Thống as its puppet king.