Ukrainian Soviet Socialist Republic
The Ukrainian Soviet Socialist Republic (Ukrainian SSR or UkrSSR or UkSSR; , УРСР ; , УССР ; see "Name" section below), also known as the Soviet Ukraine, was one of the constituent republics of the Soviet Union from the Union's inception in 1922 to its breakup in 1991. The republic was governed by the Communist Party of Ukraine as a unitary one-party socialist soviet republic.
Russia–Ukraine relations
In 1920 Soviet Russian forces overran Ukraine and relations between the two states transitioned from international to internal ones within the Soviet Union, founded in 1922. After the Soviet Union's dissolution in 1991, Russia and Ukraine have undergone periods of ties, tensions, and outright hostility.