While it would be possible for any other nation to produce it, it will take a while to redevelop industrial apparatus to do it. Ukraine had made it available in such quantity and at such a low price for the past two decades that all the companies in the US that used to make the gear have either discontinued it long ago or the companies themselves are gone as there was simply no market in the US to sell to.
Yet another example of the idiocy of globalization. Shaved a few pennies off to boost the C-suite’s loot, but suddenly, oops!, we forgot that we’re depending upon an unstable part of the world and now we have nothing. Just look at all the problems Boeing has had with 787 components that were outsourced all around the world not fitting correctly when they tried to join them. But I’m sure the execs got a tidy sum for themselves for doing it.
We really need to find some way to redirect American companies back toward actually being American, and putting the nation’s strategic priorities before their own. Trump had it right: Tell companies that if they want to outsource, fine, but if they do they’ll pay steep tariffs for the privilege of selling those products back into the U.S. market.