Meanwhile, the word Hui came to denote all Muslims in China. The Mongol empire was huge, and a system of "resettlement garrisons" (with soldiers permanently resettled to new homes) was employed. Hui troops were often left as garrisons, and there arose many Hui villages and camps, traces of which still can be found today.
蒙古由於幅員廣大，實行屯兵制，回回軍所到之處，往往被留下戌守屯墾，形成日後的回回村、回回營，直到今日，仍有遺蹟可尋。