But that’s answering the question considering the forces the Russians have committed to Ukraine thus far. Of all of the above, probably only Israel and maybe South Korea could fight toe to toe with Russia in “neutral” airspace — and only then only because of the massive advantage of the F-35 and their pilots prior combat experience. But no way could or would Israel (or likely SK for the same reason) commit to that type of operation that far beyond their borders …. It would leave their actual homeland way too vulnerable.