Who's up for predictions? If Russia is mostly alone, it should be a breeze because we outnumber them 10 to 1

If Russia vs Ukraine turned into ww3, Russia would win.
You would have Russia, China, Pakistan & north Korea on one side. On the other: the EU, the USA, Canada, Australia, Taiwan, India & south Korea.
You have two problems. No one, who isn't Russian, has ever successfully invaded Russia. No one's ever done it. The EU's military is too politically correct to actually do anything. They'd be too afraid of accidentally hurting someone with collateral damage to return fire and get cut to ribbons by the Russians and Chinese.
Not a war we're gonna like.
Best bet? If it happens, stay neutral and let em kill each other.