3 million people, most civilians now huddled in basements. they're getting hungry. they're going to flip off the electrical grid, turn off the water. the russians will be firing thousands of artillery rounds a day, not 30 or 40 cruise missiles and ballistic missiles. it will get miserable rapidly. those ukrainian soldiers will have all the advantages if they fight block by block. but it would be devastating on the civil population. so, it's not clear to me that at some point president zelenskyy doesn't say let's withdraw to the west or declare it an open city. >> you have been involved in urban combat, the exact type of combat that the general is detailing there. what can people in ukrainian cities expect in the coming days and weeks? >> well, the continued bombardment, as general mccaffrey says. and he's absolutely right about how difficult it's going to be for the russians to attack in a city that's turned into complete