well as laid out very clearly for president putin. let there be no doubt at all if putin makes this choice russia will pay a heavy price. the ukrainian foreign minister said this morning he is confident of our support and resolve and he has a right to be. >> president biden clarifying his position today after suggesting on wednesday that a minor incursion from russia into ukraine could draw more muted response compared to a large scale invasion. here is what ukraine's president had to say before the clarification. quote, we want to remind the dpraet powers that there are no minor incursions and small nations. "the wall street journal" sums up the concern this way. quote, ukrainian officials are touchy in part because their analysis is that a large-scale attack isn't russia's probable course. instead the kremlin would probably deploy more covert measures to destabilize its neighbor and remove leadership top officials say.