A mentally disabled Yazidi man is carried to a bus that will bring him to the Kurdish city of Dohuk, after being released by Islamic militants, in Alton Kupri, outside Kirkuk, Iraq, on Sunday. Bram Janssen/AP hide caption

itoggle caption Bram Janssen/AP

French Prime Minister Manuel Valls delivers his speech during an homage to the 17 victims of last week terrorist attacks, at the French national Assembly in Paris on Tuesday. Remy de la Mauviniere/AP hide caption

itoggle caption Remy de la Mauviniere/AP

Young members of the Baghdad Rowing Club practice on the river Tigris, close to the University of Mustansiriyah in the Iraqi capital. Alice Fordham/NPR hide caption

itoggle caption Alice Fordham/NPR

An Iraqi Christian prays inside a shrine on the grounds of the Mazar Mar Eillia Catholic Church in Irbil, in northern Iraq. Irbil has become home to hundreds of Iraqi Christians who fled their homes as the Islamic State advanced earlier this year. Matt Cardy/Getty Images hide caption

itoggle caption Matt Cardy/Getty Images

Iraqi Kurdish regional President Massoud Barzani speaks with the media at Mount Sinjar, in the town of Sinjar, on Sunday. Barzani was visiting an area that was recently retaken from ISIS militants. STRINGER/IRAQ/Reuters/Landov hide caption

itoggle caption STRINGER/IRAQ/Reuters/Landov

More than 4,000 officers of the Nineveh province security force are based in an isolated training camp in northern Iraq. Their aim is retaking ISIS-controlled Mosul, Iraq's second-largest city. Deborah Amos/NPR hide caption

itoggle caption Deborah Amos/NPR

The Iraqi town of Halabja is dominated by Kurds, the group that has been fighting the Islamic State in northern Iraq. However, some Kurdish residents have been slipping away to join the Islamic State. Yahya Ahmad/Reuters/Landov hide caption

itoggle caption Yahya Ahmad/Reuters/Landov

Many Yazidis, like the ones shown here, managed to flee the onslaught of the so-called Islamic State and made their way to relative safety, like this camp near the northern Iraqi border crossing of Zakho. However, some 5,000 Yazidis, many of them women, are still being held hostage by the Islamic State. EPA/Landov hide caption

itoggle caption EPA/Landov