Which battle in 1204 consolidated Genghis Khan's power over the Naimans?

The Battle of Chakirmaut in 1204 consolidated Genghis Khan's power over the Naimans. At the time, Genghis was still known as Temüjin, and the battle formed the decisive final stage of his unification of the Mongol steppe.

The Naimans were led by Tayang Khan, whose forces were joined by his son Kuchlug and the rival Mongol leader Jamukha. Temüjin's army defeated this coalition near Mount Naqu in the Altai region. Tayang Khan was killed, while Kuchlug escaped westward and later became a major opponent of the Mongols in Central Asia.

The victory destroyed one of the strongest remaining powers resisting Temüjin. It also brought Naiman officials, scribes, and religious specialists into the expanding Mongol state. Their literate administrative traditions helped strengthen the empire that Temüjin would soon proclaim.

This battle is sometimes confused with later Mongol victories, including the Battle of Yehuling in 1211 against the Jin dynasty. Chakirmaut concerned the internal unification of the Mongol world; it was not one of Genghis Khan's campaigns against China or the Khwarazmian Empire.