perhaps, today perhaps, the beginning of a more dramatic move, isis is being pushed back perhaps to the point, months down the line, to the point of extinction. >> wow. to hear those words, ben, isis potentially being pushed to extinction months down the road, as you've said in your reporting, this will be a messy and prolonged battle. it speaks to the significance of mosul and iraq, and the significance of it to isis' strategy. a city they have held, again, for two years. iraqi prime minister al abadi taking to television in iraq. can you speak to what the people of mosul, what they have gone through in the last 24 hours or so. i understand that leaflets were dropped from the air, telling them to stay inside and stay secure. >> yeah, the leaflets also included a phone number to call if they need help.