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.
Western Ukraine
It is defined mainly in the context of European history pertaining to the 20th-century wars and the ensuing period of annexations. At the onset of World War II the whole territory was incorporated into the Ukrainian Soviet Socialist Republic (УРСР), following elections which are acknowledged as staged and specifically for the purpose to manufactured public consent for the transfer of land from occupied Poland to the Soviet Union as of October 22, 1939. Its historical background makes Western Ukraine uniquely different from the rest of the country, and contributes to its distinctive character of today.