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.
Ukrainian Soviet Socialist Republic
In September 1939, the Soviet Union invaded Poland and occupied Galician lands inhabited by Ukrainians, Poles and Jews adding it to the territory of the Ukrainian SSR. In 1945, these lands were permanently annexed, and the Transcarpathia region was added as well, by treaty with the post-war administration of Czechoslovakia. Following eastward Soviet retreat in 1941, Ufa became the wartime seat of the Soviet Ukrainian government.