50 division 150 Liu's final result covered the successful retreat of the main force. After the 50th Division left the country, it actually played well, and carried out a large-scale clean-up of the Vietnamese troops on the retreat route to cover the successful retreat of the main force. By noon on March 1 1, Liu, the division commander of 150, and Guan Huoming, the deputy division commander, had differences on the evacuation route.