Battle of the Vorskla River

The Battle of the Vorskla River was a great battle in the medieval history of Eastern Europe. It was fought on August 12, 1399, between the Tatars, under Edigu and Temur Qutlugh, and the armies of Tokhtamysh and Grand Duke Vytautas of Lithuania. The battle ended in a decisive Tatar victory.

In late 1380s the relationship between Tokhtamysh, Khan of the Golden Horde, and his former master, Timur, was growing tense. In 1395, after losing the Tokhtamysh–Timur war, Tokhtamysh was dethroned by the party of Khan Temur Qutlugh and Emir Edigu, supported by Timur. Tokhtamysh escaped to the Grand Duchy of Lithuania and asked Vytautas for assistance in retaking the Horde in exchange for surrendering his suzerainty over Ruthenian lands. This development was in harmony with Vytautas' ambitions to become ruler of all Ruthenian lands. A surviving iarlyk shows that Tokhtamysh had asked for Polish–Lithuanian assistance previously in 1393.

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