I don't think the US is going to engage in this, even indirectly via Ukraine, because this does have some potential to escalate to WW3. And it's hard to see how

I don't think the US is going to engage in this, even indirectly via Ukraine, because this does have some potential to escalate to WW3. And it's hard to see how it'll substantially help Ukraine without killing scores of Russian civilians. >refineries venting poison gas into populated areas Hard to think of a better way to become the villain in the story. This has not occurred, but not necessarily because the means of making it happen aren't there.