Europe is already ramping up spending, and several countries have had it explicitly clear that they will be taking up the burden trump is running away from.
it's nice for then that Russia has more bodies, but it hasn't helped them so far in any capacity that has been bandied about for the past three years.
i was making this same point three years ago, that on paper everyone was terrified of the Russian military until Russia showed themselves militarily incapable of planning for or executing a campaign against a happy smaller country with badly inferior numbers and equipment.
same point 2 years ago, then 1, same conclusion today.
the however many years it takes Russia to "win"(by this point they've lost no matter what in practical terms), the EU will be fully ready to defend itself.
the 1 week it was supposed to take Russia to conquer ukraine has turned into what, 160 weeks and counting?
without making significant progress?
in those three years, multiple EU powers have already changed their policies and now spend record numbers on defense and military equipment production, specifically to deal with Russia if they ever become a threat to the larger European continent.
Russia has used up 20% of their active military personnel and a lot of their equipment fighting one of the weakest European countries to barely a stalemate, even losing sovereign ground to Ukraine.
so it doesn't really matter how long ukraine can resist Russia; Russia far overplayed its hand and doesn't seem to have much of a chance of "conquering" any further by letting everyone know how weak Russia is militarily and giving everyone else years to prepare for any more bullshit Russia tries to pull