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).
Ukraine–European Union relations
The political part of the Association Agreement was signed on 21 March 2014 by the new Prime Minister, Arseniy Yatsenyuk. Meanwhile, the EU has attempted to stabilize Ukraine by freezing assets of allegedly corrupt Russians and Ukrainians and by granting financial aid to Ukraine. The economic part of the Ukraine–European Union Association Agreement was signed on 27 June 2014 by the new President, Petro Poroshenko. On 1 January 2016, Ukraine joined the DCFTA with the EU. Ukrainian citizens were granted visa-free travel to the Schengen Area for up to 90 days during any 180-day period on 11 June 2017 and the Association Agreement formally came into effect on 1 September 2017.