It was reformed on March 19, 1918, at the Second All-Ukrainian Congress of Soviets in Yekaterinoslav, following the signing of the Treaty of Brest-Litovsk by the Russian Soviet Federative Socialist Republic (Russian SFSR) on March 3. Soviet government and people, who supported it were closely allied with Russian Soviet Republic. After the victory of the Soviet government in Ukraine Ukrainian People's Republic was officially rebranded in Ukrainian Soviet Republic and then Ukrainian Socialist Soviet Republic which became one of the co-founders of Soviet Union.