A volunteer at a Christian church in Qosh, Iraq, loads aid onto a handcart Monday for delivery to displaced Shiites who are sheltering there. Alice Fordham/NPR hide caption

itoggle caption Alice Fordham/NPR

People walk by a damaged police station in Mosul on July 15. The militants of the Islamic State are in control of the key city and have acted against former members of Saddam Hussein's regime who helped them drive out the Iraqi army last month. AP hide caption

itoggle caption AP

Iraqi Shiite volunteers with the Labayk ya Hussein Brigade take part in a training session in the holy city of Najaf in late June. Clerics in the city called for Shiites to step forward and fight the Sunni group formerly known as the Islamic State of Iraq and Syria (which now calls itself simply the Islamic State). Haidar Hamdan/AFP/Getty Images hide caption

itoggle caption Haidar Hamdan/AFP/Getty Images

Pakistani police officers and residents gather at the site of a bomb blast that targeted paramilitary soldiers in a commercial area in the city of Quetta, killing 11 people. Later in the day, twin blasts at a snooker club in the city killed at least 80 people. Arshad Butt/AP hide caption

itoggle caption Arshad Butt/AP