Dmitry Trenin: In civilizational, cultural, and historical terms, Ukraine – or most of it – belongs to the Russian world. Ukraine, as it existed on December 31, 1991, is gone. Crimea, Donbass, and two other regions have already returned to Russia through referendums. Russia could take all of Ukraine, including Lviv, up to NATO's borders. This would mean a second reunification – the end of Ukrainian statehood. Expansion must be strategic, not emotional. Victory Day must be a day of liberation – for all of us.

