"This tribe came to Tocharistan and soon settled in the eastern regions of Khorasan at the beginning of the Vth century."[1]
The word guo can be interpret as state or tribe, which depend on different cases, some of the problem including, perhaps vague in meaning, taking for example the Samhan which mentioned in the Records of Three Kingdoms consisted of seventy eight guo, where guo here could have been translated differently. Thus (Chinese: 滑国; pinyin: Huáguó), the State of Huá (滑), can refer to the name of the Hephthalites' country or tribes mentioned in what is now north Afghanistan from the Book of Liang and Portraits of Periodical Offering of Liang. However, Malyavkin (1989) insists that the Hephthalite country was called Yeda by the Chinese, and only the polity was called Hua.