Couple, a pair of neighbors, who were in mariupol. they survived 40 days of bombing before they were able to get on it toward russia. in their case, it was simply a matter of convenience. for a lot of people, that is self the days. then ending up in places like estonia, decide whether to say here or find some other home in europe before they manage to get back to ukraine. yeah, in many ways it seems this is how many countries are standing up to vladimir putin, in a humanitarian way. scott mcclain, thank you. refugees fleeing to poland, over 2.7 million. many have no idea where to go next. cnn s selma abdelaziz reports from inside a polish train station which is now a temporary rest stop for thousands. reporter: this is going to be an unimaginably difficult