an Entity references as follows:
The term Iranian Huns is sometimes used for a group of different tribes that lived in Afghanistan and neighboring areas between the fourth and seventh centuries and expanded into northwest India. They are roughly equivalent to the Hunas. They also threatened the northeast borders of Sasanian Persia and forced the Shahs to lead many ill-documented campaigns against them. "Hun" is used in the broad sense and these people may have been partly non-Iranian. Until the spread of Islam and the re-appearance of the Chinese under the Tang about 700 AD, the sources for central Asian history are poor.