Putin's invasion created a modern Ukrainian identity. A new generation of Ukrainians has been raised knowing Russia only as an hostile invading neighbor perpetuating an on going war with Ukraine.
"Instead of provoking the collapse of Ukrainian statehood, Russia’s 2014 invasion of Crimea and eastern Ukraine succeeded in galvanizing Ukrainian national identity in ways that few had previously imagined possible. Seven years on, a clear majority of Ukrainians now see Russia as the aggressor state in a war that has come to define the nation’s ongoing struggle for true independence."
https://www.atlanticcouncil.org/blogs/ukrainealert/putins-war-drives-ukraine-towards-true-independence/
A lot of those “Ukrainians” are now in Poland.