Wrong.
There is no such thing as a Ukrainian or the Ukraine.
That was made up by the Treaty of Versailles in order to punish the Bolshevik revolution.
{...
Ukraine enters into written history with the establishment of the medieval state of
Kievan Rus'. In
Dnieper Ukraine, the tribe of
Polans served as the organizers of Kievan Rus' state, beginning to name themself and their land
Rus' in 9th century, a word that probably derived from the
Varangians, who laid the foundation of the state itself.
[4][5][6] It emerged as one of the most powerful and advanced nations of
Europe at that time, with
Kyiv meeting its golden age and
Christianization under
Volodymyr the Great and
Yaroslav the Wise. Kievan Rus' started to disintegrate in
High Middle Ages, with
Kyivan monarchs competing and fighting over the throne in the core Rus' land, while experiencing
Turkic raids from
Southern Ukraine.
[7] In 13th century,
Kievan Rus' was destroyed by the
Mongol invasion, leaving its core in Dnieper Ukraine absolutely devastated, but the
Kingdom of Ruthenia (Galicia-Volhynia) succeeded Kievan Rus' under
King Daniel.
[8]
In 14th and 15th centuries, the majority of Ukrainian territories became part of
Grand Duchy of Lithuania, Ruthenia and Samogitia, while
Galicia and
Transcarpathia came under
Polish and
Hungarian rule. Lithuania kept the local
Ruthenian traditions, and was gradually influenced by
Ruthenian language,
law and
culture, until Lithuania itself came under
Polish influence, following the
Union of Krewo and
Union of Lublin, resulting in two countries merging into
Polish-Lithuanian Commonwealth, leaving Ukrainian lands under the dominance of
Polish crown.
[9] Meanwhile
Southern Ukraine was dominated by
Golden Horde and then
Crimean Khanate, which came under protection of the
Ottoman Empire, major regional power in and around
Black Sea, which also had some of its own directly-administrated areas as well.
[10]
In the 17th century, the
Cossack rebellion led by
Bohdan Khmelnytsky marked a turning point in the Ukraine' history. The
uprising, which began in 1648, was fueled by grievances against the
Polish-Lithuanian Commonwealth's nobility, religious tensions, and social inequalities. This rebellion led to the creation of the
Cossack Hetmanate, a semi-autonomous polity in central and eastern Ukraine. In 1654, the Cossack Hetmanate allied with the
Tsardom of Moscow through the
Pereyaslav Agreement.
...}
If you want to get a easy feel for what happened, just watch the movie with Yul Brenner and Tony Curtis, called "Tarus Bulba".
It shows the Polish are not native, and are evil racist fascists.
The Cossacks choose to align with Moscow, not Warsaw, because the ethnic Polish were so evil.
Why do you think Poland disappeared in 1700 and did not pop up again until the Treaty of Versailles?
That was because Poland was so evil and hated.