Displaced people from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, make way towards Syrian border, on outskirts of Sinjar mountain
Displaced people from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)
Displaced people from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, make way towards Syrian border, on outskirts of Sinjar mountain
Displaced people from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)
A displaced woman and child from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, ride truck and donkey as they make way towards Syrian border, on outskirts of Sinjar mountain
A displaced woman and child from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, rest as they make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)
A displaced woman and child from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, ride truck and donkey as they make way towards Syrian border, on outskirts of Sinjar mountain
A displaced woman and child from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, rest as they make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)
Children from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, make way towards Syrian border, on outskirts of Sinjar mountain
Children from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)
A displaced woman and child from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, ride a truck and a donkey as they make way towards Syrian border, on outskirts of Sinjar mountain
A displaced woman and child from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, ride a truck and a donkey as they make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)
Islamic State beheads, crucifies in push for Syria's east
The insurgents control roughly a third of Syria, mostly rural areas in the north and east
Displaced people from minority Yazidi sect, fleeing violence from forces loyal to Islamic State in Sinjar town, ride truck and donkey as they make way towards Syrian border, on outskirts of Sinjar mountain
Displaced people from the minority Yazidi sect, fleeing violence from forces loyal to the Islamic State in Sinjar town, make their way towards the Syrian border, on the outskirts of Sinjar mountain, near the Syrian border town of Elierbeh of Al-Hasakah Governorate August 10, 2014. Islamic State militants have killed at least 500 members of Iraq's Yazidi ethnic minority during their offensive in the north, Iraq's human rights minister told Reuters on Sunday. The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil. Picture taken August 10, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY)
A view shows a damaged part of the army's base after the Islamic State fighters seized it from forces loyal to Syria's President Bashar al-Assad outside Syria's northern Raqqa province
A view shows a damaged part of the army's 17th Division base after the Islamic State fighters seized it from forces loyal to Syria's President Bashar al-Assad outside Syria's northern Raqqa province August 10, 2014. In Raqqa, Islamic State's power base in Syria, its hold appears to be growing only firmer even as Syrian government forces intensify air strikes on territory held by the group. One Syrian living in an area of Islamic State control near Raqqa said the number of its fighters in the streets had grown dramatically in the last few weeks, particularly since it captured the army's 17th Division at the end of July. Picture taken August 10, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST MILITARY) CONFLICT)
Pictures of Syria's President Bashar al-Assad are seen at the army's base after it was seized by fighters from the Islamic State outside Syria's northern Raqqa province
Pictures of Syria's President Bashar al-Assad are seen at the army's 17th Division base after it was seized by fighters from the Islamic State outside Syria's northern Raqqa province August 10, 2014. In Raqqa, Islamic State's power base in Syria, its hold appears to be growing only firmer even as Syrian government forces intensify air strikes on territory held by the group. One Syrian living in an area of Islamic State control near Raqqa said the number of its fighters in the streets had grown dramatically in the last few weeks, particularly since it captured the army's 17th Division at the end of July. Picture taken August 10, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST MILITARY) CONFLICT)