people of ukraine, it's pretty remarkable the streets in the capital kyiv still appear to be relatively calm. so, have ukrainians developed a resistance to russia's aggression, the omni presence since the 2014 invasion of crimea? what is the scene like there tonight? let's go to cnn's matthew chance who is in kyiv to give us the latest. matthew, what are you seeing out there? it sounds like there is relative calm. but that sounds deceptive in some respects. what are you seeing? >> reporter: relative calm, particularly when you consider the warnings that are coming thick and fast now from the united states and others that, you know, this country should brace itself, essentially for an onslaught by russian forces. we've spoken to ukrainian officials tonight, and they've said, look, you know, we've been briefed on the u.s. intelligence, warning there could be a russian attack, if not an outright invasion within the next several days. and that's exactly the same kind