> I'm not sure it is a proxy war, as the Ukrainian government is not being instigated by the US.
Ukraine military spending is ~$6b/yr [0] and so far this year the US has sent ~$57b of "aid" to Ukraine [1], of which ~$27b is military.
The total US commitment dwarfs the contribution from all other countries [2] and it appears there is a request for another ~$38b [3] of which ~$21b is military spending.
So while one could claim that the US is not instigating Ukraine govt to war, it's clear that the US is funding a greater part of the military activities by providing equipment for the war to the tune of at least (to date) 4-5x Ukraine's normal military spending each year.