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.
Modern history of Ukraine
Polish rule over the provinces ended in September 1939, following Nazi and Soviet attack. After the Battle of Lviv, units of the Red Army entered regional capital, Lviv, and following the staged Elections to the People's Assemblies of Western Ukraine and Western Belarus, both eastern Galicia and Volhynia were annexed by the Soviet Union.