“On Monday, Iraqi forces began an operation to expel ISIS from Mosul, Iraq’s second-largest city, with U.S. air strikes clearing the way. Thousands of Shiite militiamen, from groups with horrific records of sectarian killings, are preparing to join the fight.” Dexter Filkins on the dangers of the Iraqi coalition headed toward Mosul.

+ Let this sink in a bit. Civilians who have suffered under ISIS are now fleeing the area to cross the border into Syria (where it’s safer).