Iranian Huns
The term Iranian Huns is sometimes used for a group of different tribes that lived in Central Asia, in the historical regions of Transoxiana, Bactria, Tokharistan, Kabul Valley, and Gandhara, overlapping with the modern-day Afghanistan, Tajikistan, Uzbekistan, Eastern Iran, Pakistan, and Northwest India, between the fourth and seventh centuries. They also threatened the Northeast borders of Sasanian Iran and forced the Shahs to lead many ill-documented campaigns against them.