There might be benefits if there is an end to it that isn't sticks and stones but nothing that couldn't be gained without going to war.
In the UK, arguably the main reason we have the vote and NHS and welfare system was to keep us from going bananas after the world wars.
It's a gain, sure, and would've taken longer otherwise, but anything that happens now is bullshit like WW1.
WW2 was different but a direct result of lack of foresight by people who were meant to be the most educated and blah blah blah.
The UK is fucked too but Russia is not the enemy. Pathology masquerading as the only viable option and centuries of gaslighting on a massive level is the real enemy. We have to collectively admit that we've been massively duped for a long, long time and I think that is the biggest barrier. Incidentally, it's also the sin of sins...pride.