ISIS - Who Are They? And How Did They Come About?

The leader Abu Bakr al-Baghdadi, RIP, he was on his associates were former al-Qaeda and Iraq guys who by 2013 had been pushed out of Iraq and into Syria. By January 2014, they've taken over the Sunni cities of Fallujah and Ramadi,. Both of which you know, especially Fallujah as we've talked about in the show, were huge strongholds of the Sunni insurgency against American forces. And then obviously the big thing that everyone remembers was the ISIS blitzkrieg across the country and ISIS took control of the city of Mosul.