need to take this chance, we need to do that. cnn correspondents are tracking developments around the world. this hour, we will have reports from lviv. bashir is in london, and we are live in southern ukraine. >> reporter: it is pretty clear that ukraine has seen some strategic success down here around the black seaport of nikolai. we would see some blasts from the sky line here, it has been quiet here, because ukrainian forces have pushed russians down the road to the first city of russian occupied. we saw ourselves on that road, and how some of the artillery ukraine is using appears to be having an effect, but still, the bombardment of both sides seems to continue and there has been a heavy cost imposed on