Topic summary
Hephthalite
Extracted from the Wikipedia article Hephthalites.
End of the Empire and fragmentation into Hephthalite Principalities (560–710 CE)
After Kavad I, the Hephthalites seem to have shifted their attention away from the Sasanian Empire, and Kavad's successor Khosrow I (531–579) was able to resume an expansionist policy to the east. According to al-Tabari, Khosrow I managed, through his expansionist policy, to take control of "Sind, Bust, Al-Rukkhaj, Zabulistan, Tukharistan, Dardistan, and Kabulistan" as he ultimately defeated the Hephthalites with the help of the First Turkic Khaganate.