Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





Kurdish Peshmerga forces stand guard near Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat as they arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





A member of the Kurdish Peshmerga forces stands guard as Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





A member of the Kurdish Peshmerga forces stands guard as Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





A member of the Kurdish Peshmerga forces stands guard as Sunni Muslims who fled the Islamic State's strongholds of Hawija and Shirqat arrive at the town of Dibis, northwest of Kirkuk, Iraq, August 18, 2016. (Photo by Ako Rasheed/Reuters)





A girl peers from her house as a member of the security forces patrols a street in Srinagar as the city remains under curfew following weeks of violence in Kashmir August 19, 2016. (Photo by Cathal McNaughton/Reuters)





Women leave a hospital in Srinagar as the city remains under curfew following weeks of violence in Kashmir August 19, 2016. (Photo by Cathal McNaughton/Reuters)





A boy looks back at a member of the security forces in Srinagar as the city remains under curfew following weeks of violence in Kashmir August 19, 2016. (Photo by Cathal McNaughton/Reuters)





Two women and a girl make their way along a street littered with rocks thrown by protestors in Srinagar as the city remains under curfew following weeks of violence in Kashmir August 19, 2016. (Photo by Cathal McNaughton/Reuters)





Fighters from Libyan forces allied with the U.N.-backed government take position during a battle with Islamic State fighters in neighborhood Number One in Sirte, Libya August 17, 2016. (Photo by Ismail Zitouny/Reuters)





Fighters from Libyan forces allied with the U.N.-backed government patrol during a battle with Islamic State fighters in neighborhood Number One in Sirte, Libya August 17, 2016. (Photo by Ismail Zitouny/Reuters)





Fighters from Libyan forces allied with the U.N.-backed government take position during a battle with Islamic State fighters in neighborhood Number One in Sirte, Libya August 17, 2016. (Photo by Ismail Zitouny/Reuters)





Fighters from Libyan forces allied with the U.N.-backed government receive meals during a battle with Islamic State fighters in neighborhood Number One in Sirte, Libya August 17, 2016. (Photo by Ismail Zitouny/Reuters)





Fighters from Libyan forces allied with the U.N.-backed government receive meals during a battle with Islamic State fighters in neighborhood Number One in Sirte, Libya August 17, 2016. (Photo by Ismail Zitouny/Reuters)





Libyans gather at the scene following a car bomb attack in al-Gharbiat in Sirte, Libya August 18, 2016. (Photo by Ismail Zitouny/Reuters)





Russian airstrikes hit the Salah al-Din district of Aleppo, Syria overnight August 18, 2016, killing three civilians and injuring several others. (Photo by Imageslive/Rex Features/Shutterstock)





People observe as others lay down the body of a dead woman inside a grave in the multi-layered graveyard of Douma city, outskirts of Damascus, Syria, 18 August 2016. The Local Council of Douma started digging multi-layered graves as a solution for the massacre that happened in August of 2015 when more than 100 Syrian were killed in airstrikes on the Rebel-held city of Douma, 60 people were buried in two mass graves in that night. The graveyard always contains at least 40 empty graves in case of mass killing. The graves contains eight stairs, and is organized to bury the unknown on top in case they were identified later. (Photo by Mohammed Badra/EPA)





A injured boy cries as he awaits treatment at a makeshift clinic following a reported airstrike on the rebel-held town of Douma, east of the Syrian capital Damascus, on August 18, 2016. Agence France-Presse reports that more than 290,000 people have been killed and millions forced to flee their homes since Syria's conflict erupted in March 2011. (Photo by Abd Doumany/AFP Photo)





One of the poor families collecting firewood from the street and the burn to feel some warmth in Aleppo, Syria on August 19, 2016. (Photo by Basem Ayoubi/Imageslive/ZUMA Press/Splash News)





A pro-government fighter holds a machine gun mounted on a patrol truck in Bir Basha area in southwestern of Taiz province, Yemen, August 18, 2016. (Photo by Anees Mahyoub/Reuters)





Pro-government fighters ride on the back of a patrol truck, in Bir Basha area in southwestern of Taiz province, Yemen, August 18, 2016. (Photo by Anees Mahyoub/Reuters)