WAR ON ISIS: 'My grandchildren’s generation will still be fighting this fight.'

As the battle for Mosul rages, Bill Powell reports from Iraq on how ISIS plans to recover if the city falls.

On June 10, 2014, the day the black flag of the Islamic State militant group went up over the city of Mosul in northern Iraq, life for an ISIS fighter was good.

The seizure of a city of nearly two million showed that ISIS leader Abu Bakr al-Baghdadi was making good on his claim to set up a “caliphate” across a vast swath of the Middle East.