worse. according to the u.n., they fear as many as four million people could be displaced in the coming months. we're only a week into this thing so far. >> diaz: and, chris, you know, as russia appears to be gaining momentum, how are ukrainians that you're talking to on the ground feeling? >> reporter: they have remarkably high spirits. they think they're going to win this "david and goliath" conflict, despite being outsized and outgunned in every way by the russians. one person i interviewed yesterday said, "we have morei d yesterday said, we faith in our military than the pope has in god." >> diaz: chris livesay in lviv. thank you. today, u.s. secretary of state antony blinken visited poland. blinken met with refugees and later with ukraine's foreign minister. the pair held talks at the border and stepped briefly into ukrainian territory. later, america's top diplomat spoke to journalists. >> putin's made a terrible, terrible, terrible mistake in many ways, but it starts with