Rouran Khaganate
"" of "III Anlage" is one of the most famous caves of the Third Period. It is dated to circa 550-600 CE, and possibly follows the events of the Turk uprising against the Rouran Khaganate in 552 CE and the subsequent Turk expansion. The helmets of the Knights depicted in some of the murals have been said to be characteristic pear-shaped segmented helmets of the Turkic type.