Qapaghan Qaghan

Qapaghan Qaghan led military campaigns that expanded the Gokturk Khaganate's territory from the Great Wall of China to the Caspian Sea. He subjugated the Kyrgyz, Turgesh, and other steppe tribes, establishing Gokturk dominance over the eastern steppes.

Qapaghan Qaghan forced the Khitan and Tatar confederations to submit to Gokturk authority. He incorporated their cavalry into his army and used them as vassals in campaigns against China and other steppe peoples.

Qapaghan Qaghan defeated a Tang Chinese army near Qarabaliq, forcing the Tang to recognize Gokturk suzerainty over the Tarim Basin. This victory secured Gokturk control over the Silk Road trade routes for a decade.

Qapaghan Qaghan was killed in a battle against the Basmyl tribe, a former vassal that rebelled. His death led to a succession crisis and the eventual decline of the Gokturk Khaganate, as his son was unable to maintain control.