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.
Carpathian Ruthenia during World War II
Carpathian Ruthenia was a region in the easternmost part of Czechoslovakia (Subcarpathian Ruthenia, or Transcarpathia) that became autonomous within that country in September 1938, declared its independence as the "Republic of Carpatho-Ukraine” in March 1939, was immediately occupied and annexed by Hungary, invaded by the Soviet Red Army in 1944 and incorporated into the Ukrainian Soviet Socialist Republic in 1946.