Donetsk–Krivoy Rog Soviet Republic

The Donetsk–Krivoy Rog Soviet Republic or Donetsk–Kryvyi Rih Soviet Republic (Russian: Донецко-Криворожская советская республика, romanized: Donetsko-Krivorozhskaya sovyetskaya respublika; Ukrainian: Донецько-Криворізька Радянська Республіка, romanized: Donetsko-Kryvorizka Radianska Respublika) was a self-declared Soviet republic of the Ukrainian People's Republic of Soviets proclaimed on 12 February 1918. It was founded three days after the government of the Ukrainian People's Republic (UPR) signed its Treaty of Brest-Litovsk with the Central Powers, which recognised the borders of the UPR. Lenin did not support the creation of the entity and neither did Sverdlov.

Source: Wikipedia — Donetsk–Krivoy Rog Soviet Republic (CC BY-SA 4.0)