In 1465, Akhmat seized power in the Horde by rising against his brother Mahmud Khan, who had been its ruler since 1459. In 1472, Akhmat entered into alliance with the Polish king Casimir IV against Ivan III. In 1476, Akhmat suggested to Ivan III that he should recognize Russia's vassal dependence from the Horde. However, the correlation of forces was not in the Horde's favor. In 1480, Akhmat organized another military campaign against Moscow, which would result in the Horde's defeat (see Great standing on the Ugra river). Rus finally freed itself from the Tatar-Mongol oppression.
AkhmatKhan decided to take advantage of this situation and in June of 1480 sent a reconnaissance unit to investigate the right bank of the Oka river.
However, Akhmat was met by the Russian army under the joint command of Ivan Molodoy (Ivan Junior, Ivan's son) and Andrey Menshoy (Andrey Smaller, Ivan's brother).
On January 6, 1481AkhmatKhan was killed in a clash with the army of Ibak Khan of Tyumen.