images we are showing to you. before the break we spoke to a nuclear expert who called the situation very dangerous. but we should also emphasize we do not yet know about what is precisely happening there. i always think it's important to find out about situations, to not get freaked out because there's a lot we don't know. we're going to get perspective on that but also the larger battle in that part of ukraine and the larger russia campaign. joining us general james "spider" marshal, peter zwak. we heard nick paton walsh talk about ukrainian cities. can you just show us where those points are and where they're so important strategically for russia? >> absolutely. let me show you. that reporting is quite phenomenal. cnn needs to pat itself on the back frankly. this is absolutely up close. it's personal. it's real.