"ISIS issued an edict around mid-July and it said, "You’ve got three choices: convert, pay us a jihad tax, get out of town—and if you don’t do those, you’ll face the sword."
This was, of course, an absolutely chilling message. It was disseminated throughout the city and on the Internet as well, and at that point most of the Christians had already fled Mosul, but the few remaining families, and we’re still talking several hundred, apparently, just packed up and left. Some left with nothing but the clothes on backs, others piled whatever precious possessions they could into their cars and some of them then found at ISIS checkpoints that they were robbed of those few precious possessions that they had hoped to bring out with them. So it has been an absolutely terrifying part of a broader campaign to “cleanse” … Mosul and surrounding areas, of anyone who does not espouse this strict interpretation of Sharia that ISIS espouses.”