Does it matter?
If Russia uses tactical nuclear weapons, what's NATO going to do? Write a strongly worded letter? Russia won't do much more damage with small nukes than they've already done with relentless bombardment of Ukranian cities.
I don't give a damn about Ukraine. If our DoD wants to send a portion of its budget to Ukraine so that Ukrainians can degrade Russia's military without risking American lives...fine. That's a sound military fiscal strategy. Especially, if we throw our older soon-to-be-retired equipment into that grinder. Seems like it protects us in the long run and sends a message to China regarding how we'd respond to their potential assault on Taiwan.
Ukraine cannot win. They simply do not have the numbers. But, if our Pentagon and Zelinsky want to fight to the last Ukranian... so be it. Screw all of them.
Before Obama, the USA and Russia were Allies.
Something this country desperately needs during the ascension of China.
We were in pretty good shape.
Now we are so screwed.