The defeat reasserted the Horde's rule over some of Russian lands, which overthrew Tatar rule 98 years later by the great stand on the Ugra River. Tokhtamysh also re-established the Golden Horde as a dominant regional power, reunified the Mongol lands from Crimea to Lake Balkash and defeated Lithuanians at Poltava in the next year. However, he made the disastrous decision to wage a war against his former master, Tamerlane, and the Golden Horde never recovered.