Nato peace keepers on ukranian soil.
why, Ukraine is not in NATO and unless NATO are ready for the logical next step which is war with Russia, then why would anyone look at that and say it's a sane next move. Ukriane is literally of no significance to the biggest player in NATO and whilst that won't be what most people want to hear it's the bitter truth. Unless the US see a case put their troops (as part of NATO) in direct conflict with Russian forces on Ukrainian soil then it will never happen.