He Yingqin
During the later Republic of China era, Chiang Kai-shek pressed for the reintroduction of the baojia system. He Yingqin argued that the baojia system could be used as the basis for the switch from a mercenary to a compulsory military service. The system had some success, but there was great difficulty in finding qualified and willing "baozhang", as the position was unpaid.