The fate of Ukraine after Russia’s military aggression will depend on the rules that Europe decides to follow in the 21st century.
Either Europe must embrace the fundamental principles of freedom, rule of law, democracy, inviolability of borders and the right to self-determination by nations large and small. Or go with the dominance of large powers, might over law, “guided” democracy, spheres of influence instead of self-determination, and violence instead of the law of nations.
Under Vladimir Putin, Russia wants to return to an order dominated by large powers and their spheres of influence, like Europe during the 18th and 19th centuries.
The European Union and a European Ukraine are a hindrance to that. Russian policy attempts to destabilize Ukraine, especially in military and financial terms. Europe must not allow it.