The Huns were an aggressive, dangerous, conquering tribe who probably came from Western China. The Chinese successfully defended themselves against the Huns in the 3rd century. The Huns then divided into two groups. The smaller group went towards India. But, the main group went north-west to Siberia. By 350 AD, the Huns were already crossing the steps toward Europe. In Europe, the Huns defeated many groups, and finally settled in the Hungarian area. They attacked the Eastern Roman Empire in 430 AD.
The Huns were divided into the Hephthalites or White Huns, who invaded the Sassanid empire of Persia, and the Black Huns, who invaded Europe. The Hephthalites have fairer complexions than the Black Huns. Whether black or white, the Huns terrorized much of Asia and Europe from the 3rd through 5th centuries.