马家军
In the first decade of the 20th century, it has been estimated that there were 20 million Muslims in China proper (that is, China excluding the regions of Mongolia and Xinjiang). Of these, almost half resided in Gansu, over a third in Shaanxi (as defined at that time) and the rest in Yunnan. In 1911, the provinces of Qinhai, Gansu and Ningxia fell to Muslim warlords of the family known as the Ma clique, including Ma Bufang and Ma Chung-ying.