We're undergoing a lot of propaganda about how effective Ukraine is against Russia, but that's despite most European countries practically immolating their own stockpiles of defence capability, and they're doing so somewhat unoformily (while Russia does everything they can to weaken the European homogeneity; see their funding into brexit and anti-EU seniment spreading bot farms on social media).
It's definitely not a given that we can stand up to Russia with our current capability, and it's also the case that we'd be throwing human capital at the problem because we failed to adequately invest.
I spoke to one person from Ukraine who was enlisted, he mentioned he was waiting for something from the UK, I asked how long does it normally take.. he told me that he doesn't measure time in weeks, but how many of his friends he he will lose.
.. that hit me hard, and it made me consider who incredibly naive and coddled I was to believe that investing in military or weapons things is a "right wing" or "bad" thing.
War always seems so far away until it's on your door.