If Trump deploys US troops as “peacekeepers” adjacent to Russia, it will be a monumental disaster. It really is in the best interests of the American people to disengage from Europe. If the EU really wants to fight Russia , let them do it alone. Europe has devolved into something that is becoming increasingly weird and alien to America.
There's almost no difference between European elite culture and American elite culture: both embrace authoritarian suppression of dissent, sexual perversion, child mutilation, mass immigration and replacement of white natives with Third World barbarians.
The "Biden" regime instituted a thorough system of social media based suppression including debanking of opponents, false prosecutions, and blacklisting to suppress political opponents.
We dodged a bullet, and many of the Eastern European governments like Poland are still sufficiently democratic to push back against the lunacy of Brussels and the transnational elites. Even the British, Germans and French have had a enough but are struggling to throw off the stifling control of authoritarian center-left political parties. They deserve our support.
And an America alone will still have large security concerns in this hemisphere and in the Pacific, but would be left in the same position we were in in 1940 with a second-rank Navy and a third-rate army, waiting to be sucker punched again. Achieving genuine economic and security autarky would require almost a WWII-style recapitalization of US heavy industry and an almost revolutionary suppression of our current corrupt business and political class, for which there is almost zero political chance.
Keeping China and Russia busy far away from us is far better than waiting to be attacked once again with inadequate preparation.
Lol, you seem to be not aware that there are currently US peacekeeping troops in Estonia and Latvia, adjacent to Russia.