so this campaign is full of risk, to be frank about it. normally the russians are a little bit more deliberate than this. they would normally do something that was more sequention. if you are operating at four different axis, they each have to have their own logistical infrastructure to support it. those of us familiar with large scale military campaigns, the people that lead these campaigns, guys like me and general kellogg and petraeus and others, we're a dime a dozen. we're operational commanders. the guys that help win this thing are the logistics men. he has four axis of advance. each one of them has to have logistic infrastructure to sustain that attack along that axis of advance. and that is significant burden he has taken on himself. >> bill: how long can zelensky