Tokhtamysh–Timur war

The Tokhtamysh–Timur war was fought from 1386 to 1395 between Tokhtamysh, the khan of the Golden Horde, and the warlord and conqueror Timur, founder of the Timurid Empire, in the areas of the Caucasus Mountains, Turkestan and Eastern Europe. The battle between Timur and Tokhtamysh played a key role in the decline of Mongol power over the Russian principalities.