william collins joins us now. he's a retired colonel for the us army who is now a military analyst and executive director of the madison policy form and national security thing tech in the states. colonel collins good to see you. now, israel's ground defensive against him. us could start any minute. now, how complicated do you expect it to be considering? it will take place and one of the most densely populated places on the planet. i mean to be extremely difficult. if you look, i mean historically, right battles and urban areas are, are they, they, they set up troops, they take a lot longer than they think they're going to take. they're very complicated. it's just the train is so complex. and on top of the complex to the train, which includes right superstructures going up many stories into the sky and in probably hundreds of kilometers and tunnels, or tens of landers and tunnels underground as you, you're going to have civilians, even if they try to evacuate them historically 10 percent don't leave because they