There goes US credibility:
[A]sked about Russia’s threatening activities that have unnerved the small Baltic States that are among the more recent entrants into NATO, Mr. Trump said that if Russia attacked them, he would decide whether to come to their aid only after reviewing whether those nations “have fulfilled their obligations to us.”
Trump is effectively threatening to abrogate the North Atlantic Treaty of 1949. That should really inspire confidence in our European allies. Did I say "European allies"? Sorry, that should have been, "really inspire the confidence of Tsar Vladimir of All Russias".