Ukrainian Soviet Socialist Republic
Eventually, after the creation of the Communist Party (Bolshevik) of Ukraine in Moscow, a third Ukrainian Soviet government was formed on 21 December 1919 that initiated new hostilities against Ukrainian nationalists as they lost their military support from the defeated Central Powers. Eventually, the Red Army ended up controlling much of the Ukrainian territory after the Polish-Soviet Peace of Riga. On 30 December 1922, along with the Russian, Byelorussian, and Transcaucasian republics, the Ukrainian SSR was one of the founding members of the Union of Soviet Socialist Republics (USSR).
Post-Soviet states
The Eurasian Economic Community (EURASEC), formerly the CIS Customs Union, was established by Russia, Belarus, Kazakhstan, Kyrgyzstan and Tajikistan. Ukraine and Moldova have observer status in the community; however, Ukraine has declared its desire not to become a full member state. Because having common borders with the rest of the community is a prerequisite for full membership, Moldova is barred from seeking it. Uzbekistan applied for membership in October 2005, when the process of merging Central Asian Cooperation Organization and the Eurasian Economic Community began; it joined on 25 January 2006. Uzbekistan subsequently suspended its membership in 2008.