Well, I think the rest of the sane world need to step away from Trumps insane actions, and wait for his fall,
We need to re-consider our alliance's that must include the end of Nato, the European nations, and those who support us, should just collapse it, leaving only the US, Hungary and Slovenia,
A new, Pan European organisation, along with Australia, New Zealand, Canada, Japan, etc can then set up its own mutual support organisation, minus those three countries, As the US will not be a member, they can be asked to remove their bases,and the members can decide their own military orders, hopefully with European manufacturers, Ukraine should be included in this new organisation, that would open up the full support of Ukraine, by the European forces, on both land and air, to Holt Russia, then roll it back to its own borders,