Inclusion of Ukraine into the European Union right now means immediate war of Russian Federation with whole European Union.
This will also mean war of Russian Federation with NATO because both alliances overlap.
In which case nukes will fly.
Someone here asked me about why I think the Russian nuclear deterrent is, right now, the best in the world.
Well, Russia has the most advanced missile launcher systems, warheads, and launch platforms like submarines.
US is still using Cold War era material. Russia's is like 1/3rd Cold War era and rest is at most 1 decade old.