he is vulnerable is lots of russian soldiers return to russianrussia dead.t will raise the political cost of him raising are. >> fighting with russia will actually strengthen him domestically. sorry. we are talking about a dictatorship first of all and a dictatorship thrive, thrive when they have sanctions, thrive thrive when they have an external threat. transatlantic trend, proves that the russians regardless, in this case even more so. so all we have done so far have been just strengthening. >> mr. ambassador i'll give you a chance to respond to that point in a moment. we'll be back with more "inside story" after a short break. when we return, too much help for ukrainian or not ukraine or not enough? did western leaders provoke a showdown with russia and leave ukraine the its fate? >> sunday night. >> 140 world leaders will take the podium. >> get the full story. >> there is real disunity in the security council. >> about issues that impact your world. >> infectious diseases are a major threat to health. >> "the week ahead". sunday 8:30 eastern. only on a