“Modern Ukraine was an administrative district of the Soviet Union.”
Swiiiing, and a miss!!!
“The Ukrainian Soviet Socialist Republic (Ukrainian SSR, UkrSSR or UkSSR; Ukrainian: Украї́нська Радя́нська Соціалісти́чна Респу́бліка, romanized: Ukrainska Radianska Sotsialistychna Respublika, abbreviated УРСР, URSR; Russian: Украи́нская Сове́тская Социалисти́ческая Респу́блика, УССР), also known as Soviet Ukraine, was one of the constituent republics of the Soviet Union from the Union’s inception in 1922 until its breakup in 1991.[11]
https://en.m.wikipedia.org/wiki/Ukrainian_Soviet_Socialist_Republic
“Another right that was granted but never used until 1991 was the right of the Soviet republics to secede from the union,[1] which was codified in each of the Soviet constitutions. Accordingly, Article 69 of the Constitution of the Ukrainian SSR stated: “The Ukrainian SSR retains the right to willfully secede from the USSR.”[2] However, a republic’s theoretical secession from the union was virtually impossible and unrealistic in many ways prior to Gorbachev’s perestroika reforms.”
https://en.m.wikipedia.org/wiki/Ukraine_and_the_United_Nations
It was a creation of the Soviet Union. Some of it was part of Russia since the time of Catherine the Great. Some of it they stole from Poland. It was never an independent country with its present borders.
A lot of it did not even exist in 1922 sine it was still part of Poland then. So it certainly wasn't part of the Soviet created Ukraine "Republic"