After the 1917 Revolution these governorates became subdivisions of the Ukrainian People's Republic, which also annexed Ukrainian-inhabited parts of Mahilioŭ, Kursk, Voronezh, and Minsk governorates in 1918. By the end of the Soviet-Ukrainian war in 1920, the Soviets had made them part of the Ukrainian SSR. Soviet Ukraine was reorganized into twelve governorates, which were reduced to nine in 1922, and then replaced and replaced with okruhas in 1925.