You can't be accepted into NATO if you're currently in a De Facto state of war, and playing host to the most deadly European conflict since WW2 definitely applies.Push the Russians back to their border, Ukraine join NATO and are then protected under that defensive umbrella. Obviously there are many potential road blocks such as can Ukraine join NATO considering they're still technically at war etc. I'm sure someone in these forums who is versed in the technicalities of NATO application requirements could explain why they wont/will be able to join but I'm sure exceptions can and will be made to allow them. Lets be honest, this has been a war of growing exceptions.
There are other factors too like you need to meet certain military targets to join NATO. This is why when Russia invaded Georgia in 2008 they left willingly after they had done enough damage to Georgia's military infrastructure to make them no longer a viable applicant.
Also one wildcard to this that many don't realise is that NATO article 4 is not an agreement to go to war with somebody if they attack a member, it's an agreement to provide support to that member (it was specifically set up this way at the behest of the USA so they had no binding agreement to actually show up if the USSR invaded western Europe). Even if Ukraine had joined NATO before Russia invaded them it's not guaranteed that much about this conflict would really have changed apart from NATO members being quicker to send equipment to Ukraine.
Because the geriatric politicians that decide these things still have the hype imagery playing in their minds and don't really care about minor things like facts and performance metricsIn which case it's interesting why the US isn't scraping the A-10 and is going to upgrade and extend the service life significantly.

If they kill enough Russians they can march to Murmansk and take back the Admiral KuznetsovThe more Russia loses, the more rewards Ukraine receives
I bet 500k is an aircraft carrier

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