Islamist rebel fighters walk with their weapons in what they said was a mission to control Ramouseh, an area located beside Aleppo Artillery school April 11, 2014. REUTERS/Ammar Abdullah

A remote-controlled miniature aircraft with an attached camera used by Free Syrian Army fighters to spy on forces loyal to Syria's President Bashar al-Assad, is pictured in the rebel-controlled Mleha, in the suburb of Damascus April 11, 2014. Picture taken April 11, 2014. REUTERS/Yaseen al-Bushy

In this Friday, April 12, 2013 photo, Hezbollah fighters walk through a field at the Lebanon-Syria border, near the northeastern Lebanese town of al-Qasr, Lebanon. The Shiite group has sent hundreds of its fighters into Syria to shore up President Bashar Assad’s overstretched troops, helping them gain ground around the capital, Damascus, and near the Lebanese border. But with its own casualties mounting in a civil war that activists say has killed more than 150,000 people in three years, officials say Hezbollah has turned to a variety of new tactics - including complicated commando operations - to hunt down rebels and opposition commanders. (AP Photo/Bilal Hussein)

Free Army fighters walk in a field of flowers during a reconnaissance mission on the Heesh front, for what they said was an operation to take over a checkpoint belonging to the regime's forces, at the countryside in Idlib April 10, 2014. Picture taken April 10, 2014. REUTERS/Khalil Ashawi

Islamist rebel fighters fire their weapons during what they said was a takeover of the Furn Al-Ali building that was under control by the Syrian regime in Ramouseh, an area located beside Aleppo Artillery school April 12, 2014. REUTERS/Ammar Abdullah

Islamist rebel fighters take cover with their weapons during what they said was a takeover of the Furn Al-Ali building that was under control by the Syrian regime in Ramouseh, an area located beside Aleppo Artillery school April 12, 2014. REUTERS/Ammar Abdullah

An Islamist rebel fighter fires his weapon through a hole in the wall during what they said was a takeover of the Furn Al-Ali building that was under control by the Syrian regime in Ramouseh, an area located beside Aleppo Artillery school April 12, 2014. REUTERS/Ammar Abdullah

Islamist rebel fighters walk with their weapons during what they said was a takeover of the Furn Al-Ali building that was under control by the Syrian regime in Ramouseh, an area located beside Aleppo Artillery school April 12, 2014. REUTERS/Ammar Abdullah

Soldiers loyal to Syria's President Bashar al-Assad gesture from their tank, as they pass Mar Bacchus Sarkis monastery, in Maloula village, northeast of Damascus, after taking control of the village from rebel fighters April 14, 2014. REUTERS/Khaled al-Hariri

Soldiers loyal to Syria's President Bashar al-Assad pose with their weapons as they celebrate after taking control on the al-Sakhra village in Qalamoun Mountains, northeast of Damascus April 14, 2014. Syrian soldiers backed by Hezbollah fighters recaptured the town of Maaloula, north of Damascus, on Monday, military sources and state television said, further squeezing rebels' supply routes through the Qalamoun mountains into Lebanon. REUTERS/Khaled al-Hariri

Soldiers loyal to Syria's President Bashar al-Assad hold a Syrian national flag with a picture of Assad, as they pass Mar Bacchus Sarkis monastery, at Maloula village, northeast of Damascus, after taking control of the village from rebel fighters, April 14, 2014. REUTERS/Khaled al-Hariri

Soldiers loyal to Syria's President Bashar al-Assad are seen in their tanks at al-Sakhra village in Qalamoun mountains, northeast of Damascus, after taking control of the village from rebel fighters, April 14, 2014. Syrian soldiers backed by Hezbollah fighters recaptured the town of Maaloula, north of Damascus, on Monday, military sources and state television said, further squeezing rebels' supply routes through the Qalamoun mountains into Lebanon. REUTERS/Khaled al-Hariri

In this photo released on Sunday, April 13, 2014 by the Syrian official news agency SANA, a Syrian government soldier takes his position during clashes with Syrian rebels, near the town of Rankous, Syria. The seizure of the villages comes a day after Syrian troops backed by fighters from Lebanon's Shiite militant Hezbollah group captured the nearby town of Rankous. (AP Photo/SANA)

In this photo released on Sunday, April 13, 2014 by the Syrian official news agency SANA, a Syrian forces tank arrives to take position during clashes with Syrian rebels, near the town of Rankous, Syria. The seizure of the villages comes a day after Syrian troops backed by fighters from Lebanon's Shiite militant Hezbollah group captured the nearby town of Rankous. (AP Photo/SANA)

This Monday, April 14, 2014 photo, released by the Syrian official news agency SANA, shows Syrian army soldiers sitting on their tank while on patrol in Maaloula village, northeast of the capital Damascus, Syria. Syrian government troops seized two villages, one of them an ancient Christian hamlet, north of Damascus on Monday, as part of the military's relentless offensive along the rugged frontier with Lebanon, state media and activists said. (AP Photo/SANA)

This aerial photo shows a truck after a Jordanian air strike on a convoy at the border between Jordan and Syria on Wednesday, April 16, 2014. Jordanian military warplanes struck a convoy of vehicles as they were trying to enter Jordan from Syria, the army said in a statement Wednesday, in an unusual move at a time of tensions between the desert kingdom and Damascus.(AP Photos/Ammonnews)

This aerial photo shows a truck burning after a Jordanian air strike on a convoy at the border between Jordan and Syria on Wednesday, April 16, 2014. (AP Photos/Ammonnews)

Smoke rises from a site hit by what activists said was a barrel bomb dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's al-Myassar neighbourhood April 16, 2014. REUTERS/Firas Badawi

An injured man walks along a street after what activists said was a barrel bomb dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's al-Myassar neighbourhood April 16, 2014. REUTERS/Firas Badawi

Residents inspect a site hit by what activists said was a barrel bomb dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo's al-Ansari neighbourhood April 15, 2014. REUTERS/Firas Badawi

This photo provided by the anti-government activist group Aleppo Media Center (AMC), which has been authenticated based on its contents and other AP reporting, shows a Syrian man holding a girl as he stands on the rubble of houses that were destroyed by Syrian government forces air strikes in Aleppo, Syria, Monday, April 21, 2014. Syria will hold presidential elections on June 3, the country's parliament speaker announced Monday, a vote President Bashar Assad is likely to win, as the country enters its fourth year of war. (AP Photo/Aleppo Media Center AMC)

Forces loyal to Syria's President Bashar al-Assad walk inside the government- controlled Hanano barracks after what they said was an offensive against them by Free Syrian Army fighters in Aleppo April 17, 2014. The regime forces said that Free Syrian Army fighters carried an offensive against them by digging a tunnel and blowing up part of the Hannano barracks in an attempt to seize it and failed to do so. REUTERS/George Ourfalian

This photo provided by the anti-government activist group Aleppo Media Center (AMC), which has been authenticated based on its contents and other AP reporting, shows multiple rocket launchers fire Grad missiles by the Syrian rebels as they shell the government forces positions, in Aleppo, Syria, Monday April 14, 2014. Syrian government troops seized two villages, one of them an ancient Christian hamlet, north of Damascus on Monday, as part of the military's relentless offensive along the rugged frontier with Lebanon, state media and activists said. (AP Photo/Aleppo Media Center, AMC)

A Syrian Army soldier loyal to Syria's President Bashar al-Assad stands in front of a fire in Saif Al-Dawla district of Aleppo, as they move in the direction of Al-Zibdeh after claiming to have advanced and regained control of it, April 18, 2014. REUTERS/George Ourfalian

Syrian Army soldiers loyal to Syria's President Bashar al-Assad stand near a window in Saif Al-Dawla district of Aleppo, as they move in the direction of Al-Zibdeh after claiming to have advanced and regained control of it, April 18, 2014. REUTERS/George Ourfalian

Commander LT General Issam Zaher al-Deed and the men of the 104th airborne brigade of the Syrian Republican Guards.

Trauerfeier für einen in Syrien getöteten Kämpfer der Hisbollah

FILE - This April 28, 2014 file photo shows armed, masked antigovernment gunmen patrolling Fallujah, Iraq, after Al-Qaida-linked fighters and their allies seized the city months ago. The use of barrel bombs, which are inaccurate and can indiscriminately kill large numbers of unintended victims as well as the targeted insurgents, has spread this year from Syria to Iraq, and raised concerns that desperate governments will turn to weapons that the international community has condemned as a violation of human rights laws. Fallujah is controlled by ISIL, Al-Qaida in Iraq, and the city’s streets and buildings are believed to be so rife with homemade roadside bombs that Iraqi forces cannot regularly enter. More than 90 percent of its residents have fled the city. (AP Photo/File)

Iraqi security forces display vehicles, weapons and ammunition confiscated from the Sunni militant group 'Islamic State of Iraq and the Levant' (ISIL) in Samarra, June 6, 2014. Iraqi helicopters bombed the city of Samarra after insurgents overran parts of it early on Thursday, bringing them within striking distance of a Shi'ite shrine the destruction of which in a 2006 attack unleashed a bitter sectarian war. The offensive is part of an escalating conflict between Iraq's Shi'ite Muslim-led government and Sunni Islamist militants who have been regaining momentum in the past year, particularly in the west of the country bordering Syria. REUTERS/Stringer

Mourners carry the coffin of an Iraqi officer, who was killed during clashes in Ramadi, during his funeral in Najaf June 8, 2014. Government forces are fighting rebellious Sunni tribes and al Qaeda splinter group the Islamic State of Iraq and the Levant (ISIL) in western Anbar province. REUTERS/Alaa Al-Marjani

Civilians and security forces inspect the site of a suicide bomb attack in Tuz Khormato, 130 miles (210 kilometers) north of Baghdad, Iraq, Monday, June 9, 2014. A suicide bomber first drove his explosive-laden truck into a checkpoint leading up to the offices of the Patriotic Union of Kurdistan and the nearby Kurdistan Communist Party as people rushed to the site of the explosion and another truck bomb exploded, presumably detonated by remote control, said the Town’s mayor Shalal Abdoul. (AP Photo/Emad Matti)

Members of Iraqi security forces inspect the site of car bomb attack in the town of Tuz Khurmato, north of the capital Baghdad, June 9, 2014. At least 24 people were killed in a double bombing on the offices of a Kurdish political party in the northern Iraqi town of Tuz Khurmato, local officials and medical workers said. REUTERS/Ako Rasheed

Burning vehicles belonging to Iraqi security forces are seen during clashes between Iraqi security forces and al Qaeda-linked Islamic State in Iraq and the Levant (ISIL) in the northern Iraq city of Mosul, June 10, 2014. REUTERS/Stringer

A member of Kurdish security forces stands guard as families fleeing violence in the Iraqi city of Mosul wait at a checkpoint in outskirts of Arbil, in Iraq's Kurdistan region, June 10, 2014. Radical Sunni Muslim insurgents seized control of most of Iraq's second largest city of Mosul early on Tuesday, overrunning a military base and freeing hundreds of prisoners in a spectacular strike against the Shi'ite-led Iraqi government. REUTERS/Stringer

A burning vehicle belonging to Iraqi security forces is seen during clashes between Iraqi security forces and al Qaeda-linked Islamic State in Iraq and the Levant (ISIL) in the northern Iraq city of Mosul, June 10, 2014. Radical Sunni Muslim insurgents seized control of most of Iraq's second largest city of Mosul early on Tuesday, overrunning a military base and freeing hundreds of prisoners in a spectacular strike against the Shi'ite-led Iraqi government. REUTERS/Stringer

In this Monday, June 9, 2014 image taken from video obtained from the Iraqi Military, which has been authenticated based on its contents and other AP reporting, armed Iraqi military soldiers gather in the northern city of Mosul, Iraq. Insurgents on Tuesday pressed their efforts to seize effective control of Iraq’s second-largest city of Mosul on Tuesday after Iraqi security forces abandoned their posts and militants overran the provincial government headquarters and other key buildings, dealing a serious blow to Baghdad’s attempts to tame a widening insurgency in the country. (AP Photo/Iraqi Military via AP video)

A Kurdish policeman stands guard while refugees from Mosul head to the self-ruled northern Kurdish region in Irbil, Iraq, 350 kilometers (217 miles) north of Baghdad, Tuesday, June 10, 2014. Islamic militants overran parts of Iraq's second-largest city of Mosul on Tuesday, driving security forces from their posts and seizing the provincial government headquarters, security bases and other key buildings. Prime Minister Nouri al-Maliki pressed parliament to declare a state of emergency. (AP Photo)

In this Monday, June 9, 2014 image taken from video obtained from the Iraqi Military, which has been authenticated based on its contents and other AP reporting, an Iraqi army tank [sic!] fires towards militants during clashes in in the northern city of Mosul, Iraq. Insurgents on Tuesday pressed their efforts to seize effective control of Iraq’s second-largest city of Mosul on Tuesday after Iraqi security forces abandoned their posts and militants overran the provincial government headquarters and other key buildings, dealing a serious blow to Baghdad’s attempts to tame a widening insurgency in the country. (AP Photo/Iraqi Military via AP video)

In this Monday, June 9, 2014 image taken from video obtained from the Iraqi Military, which has been authenticated based on its contents and other AP reporting, military soldiers prepare to take their positions during clashes with militants in the northern city of Mosul, Iraq. Insurgents on Tuesday pressed their efforts to seize effective control of Iraq’s second-largest city of Mosul on Tuesday after Iraqi security forces abandoned their posts and militants overran the provincial government headquarters and other key buildings, dealing a serious blow to Baghdad’s attempts to tame a widening insurgency in the country. (AP Photo/Iraqi Military via AP video)

A civilian stands near damaged vehicles belonging to Iraqi security forces are seen during clashes between Iraqi security forces and al Qaeda-linked Islamic State in Iraq and the Levant (ISIL) in the northern Iraq city of Mosul, June 10, 2014. Radical Sunni Muslim insurgents seized control of most of Iraq's second largest city of Mosul early on Tuesday, overrunning a military base and freeing hundreds of prisoners in a spectacular strike against the Shi'ite-led Iraqi government. REUTERS/Stringer

A picture taken with a mobile phone shows an armoured vehicle belonging to Iraqi security forces in flames on June 10, 2014, after hundreds of militants from the Islamic State of Iraq and the Levant (ISIL) launched a major assault on the security forces in Mosul, some 370 kms north from the Iraqi capital Baghdad. Some 500,000 Iraqis have fled their homes in Iraq's second city Mosul after Jihadist militants took control, fearing increased violence, the International Organization for Migration said. AFP PHOTO/STR

A picture taken with a mobile phone shows uniforms reportedly belonging to Iraqi security forces scattered on the road after hundreds of militants from the Islamic State of Iraq and the Levant (ISIL) launched a major assault in Mosul on June 10, 2014 (AFP Photo/Str)

Damaged vehicles belonging to Iraqi security forces are damaged after fighting with al Qaeda-linked Islamic State in Iraq in the northern Iraq city of Mosul, June 10, 2014. ( REUTERS)

Fighters of the Islamic State of Iraq and the Levant (ISIL) stand guard at a checkpoint in the northern Iraq city of Mosul, June 11, 2014. Since Tuesday, black clad ISIL fighters have seized Iraq's second biggest city Mosul and Tikrit, home town of former dictator Saddam Hussein, as well as other towns and cities north of Baghdad. They continued their lightning advance on Thursday, moving into towns just an hour's drive from the capital. Picture taken June 11, 2014. REUTERS/Stringer

An image made available by the jihadist Twitter account Al-Baraka news on June 11, 2014 allegedly shows militants of the jihadist group Islamic State of Iraq and the Levant (ISIL) hanging the Islamic Jihad flag on a pole at the top of an ancient military fort after they cut a road through the Syrian-Iraqi border between the Iraqi Nineveh province and the Syrian town of Al-Hasakah. AFP PHOTO / HO / ALBARAKA NEWS

Iraqi security forces leave a military base as Kurdish forces take over control in Kirkuk June 11, 2014. Baghdad will cooperate with Kurdish forces to try to drive militants out of Mosul, Iraq's foreign minister said on Wednesday, a day after an al Qaeda splinter group seized the country's second biggest city. REUTERS/Stringer

Iraqi security forces in uniforms and plainclothes head to Baghdad in the main road between Baghdad and Mosul, a day after fighters from the Islamic State of Iraq and the Levant took control of much of Mosul, outside Kirkuk, 180 miles (290 kilometers) north of Baghdad, Iraq, Wednesday, June 11, 2014. Al-Qaida-inspired militants seized effective control Wednesday of Saddam Hussein's hometown of Tikrit, expanding their offensive closer to the Iraqi capital as soldiers and security forces abandoned their posts following clashes with the insurgents. (AP Photo)

Kurdish policemen stand guard while refugees from Mosul head to the self-ruled northern Kurdish region outside Irbil, 217 miles (350 kilometers) north of Baghdad, Iraq, Wednesday, June. 11, 2014. The Islamic State of Iraq and the Levant, the al-Qaida breakaway group, on Monday and Tuesday took over much of Mosul in Iraq and then swept into the city of Tikrit further south. An estimated half a million residents fled Mosul, the economically important city. (AP Photo)

Fighters of the Islamic State of Iraq and the Levant (ISIL) patrol on a vehicle in Tikrit, which the group overran, June 11, 2014. Sunni rebels from the al Qaeda splinter group overran the Iraqi city of Tikrit on Wednesday and closed in on the biggest oil refinery in the country, making further gains in their rapid military advance against the Shi'ite-led government. REUTERS/Stringer

Militias of the al-Qaida breakaway group Islamic State of Iraq and the Levant (ISIL) deploy in an area in Tikrit, 80 miles (130 kilometers) north of Baghdad, Iraq, Wednesday, June 11, 2014. Al-Qaida-inspired militants seized effective control Wednesday of Saddam Hussein's hometown of Tikrit, expanding their offensive closer to the Iraqi capital as soldiers and security forces abandoned their posts following clashes with the insurgents. (AP Photo)

Burned Iraqi army armored vehicles are seen left on a street of the northern city of Mosul, Iraq, Thursday, June 12, 2014. The al-Qaida-inspired group that captured two key Sunni-dominated cities in Iraq this week vowed on Thursday to march on to Baghdad, raising fears about the Shiite-led government's ability to slow the assault following the insurgents' lightning gains. (AP Photo)

Iraqi army armored vehicles are seen burned on a street of the northern city of Mosul, Iraq, Thursday, June 12, 2014. The al-Qaida-inspired group that captured two key Sunni-dominated cities in Iraq this week vowed on Thursday to march on to Baghdad, raising fears about the Shiite-led government's ability to slow the assault following the insurgents' lightning gains. Fighters from ISIL on Wednesday took Saddam Hussein's hometown of Tikrit, as soldiers and security forces abandoned their posts and yielded ground once controlled by U.S. forces. (AP Photo)

An Iraqi police vehicle is seen burned on a street of the northern city of Mosul, Iraq, Thursday, June 12, 2014. (AP Photo)

Iraqi army armored vehicle is seen burned on a street of the northern city of Mosul, Iraq, Thursday, June 12, 2014. (AP Photo)

Iraqi federal policemen stand guard at a checkpoint in Baghdad, Iraq, Wednesday, June. 11, 2014. The Iraqi government has tightened its security measures after a stunning assault that exposed Iraq's eroding central authority, al-Qaida-inspired militants overran much of Mosul on Tuesday, seizing government buildings, pushing out security forces and capturing military vehicles as thousands of residents fled the Iraqi second-largest city. (AP Photo/ Karim Kadim)

An Iraqi federal policeman searches a man at a checkpoint in Baghdad, Iraq, Wednesday, June. 11, 2014. (AP Photo/ Karim Kadim)

Iraqi men chant slogans against the al-Qaida breakaway group Islamic State of Iraq and the Levant (ISIL), outside of the main army recruiting center to volunteer for military service in Baghdad, Iraq, Thursday, June. 12, 2014, after authorities urged Iraqis to help battle insurgents. The al-Qaida-inspired group that led the charge in capturing two key Sunni-dominated cities in Iraq this week vowed on Thursday to march on to Baghdad, raising fears about the Shiite-led government's ability to slow the assault following the insurgents' lightning gains. (AP Photo/ Karim Kadim)

Iraqi men line up to be searched outside of the main army recruiting center to volunteer for military service in Baghdad, Iraq, Thursday, June. 12, 2014, after authorities urged Iraqis to help battle insurgents. (AP Photo/ Karim Kadim)

Volunteers who have joined the Iraqi Army to fight against the predominantly Sunni militants, who have taken over Mosul and other Northern provinces, line up before travelling in an army truck, in Baghdad, June 12, 2014. Since Tuesday, black clad Islamic State of Iraq and the Levant (ISIL) fighters have seized Iraq's second biggest city Mosul and Tikrit, home town of former dictator Saddam Hussein, as well as other towns and cities north of Baghdad. They continued their lightning advance on Thursday, moving into towns just an hour's drive from the capital. REUTERS/Ahmed Saad

Volunteers who have joined the Iraqi Army to fight against the predominantly Sunni militants, who have taken over Mosul and other Northern provinces, travel in an army truck, in Baghdad, June 12, 2014. REUTERS/Ahmed Saad

Members of the Iraqi security forces pose as they guard volunteers who have joined the Iraqi Army to fight against the predominantly Sunni militants, who have taken over Mosul and other Northern provinces, travelling in army trucks, in Baghdad, June 12, 2014. REUTERS/Ahmed Saad

An Iraqi soldier flashes a V for victory sign while Iraqi men gather outside of the main army recruiting center to volunteer for military service in Baghdad, Iraq, Thursday, June. 12, 2014, after authorities urged Iraqis to help battle insurgents. (AP Photo/ Karim Kadim)

Kurdish security forces deploy outside of the oil-rich city of Kirkuk, 180 miles (290 kilometers) north of Baghdad, Iraq, Thursday, June 12, 2014. The al-Qaida-inspired group that captured two key Sunni-dominated cities in Iraq this week vowed on Thursday to march on to Baghdad, raising fears about the Shiite-led government's ability to slow the assault following the insurgents' lightning gains. Kurdish security forces took over an air base and other posts abandoned by the Iraqi military in ethnically mixed Kirkuk, a senior official with the Kurdish forces said, but he denied they they had taken over the northern flashpoint city. (AP Photo/Emad Matti)

Gunmen travel on an army truck with members of a police special forces battalion after the latter were captured by the fighters, in the Iraqi city of Tikrit June 12, 2014. Dozens of members of a police special forces battalion were paraded before a crowd in the Iraqi city of Tikrit on Thursday after they were captured by fighters who overran their base. Militants have set up military councils to run the towns they captured, residents said. REUTERS/Stringer

Images uploaded on June 14, 2014 on the jihadist website Welayat Salahuddin allegedly shows militants of the Islamic State of Iraq and the Levant (ISIL) executing dozens of captured members of Iraq's security forces in Salaheddin province (AFP Photos/-)

Iraqi Army soldiers and volunteers chant slogans against the al-Qaida inspiredc group Islamic State of Iraq and the Levant (ISIL), inside of the main army recruiting center in Baghdad, Iraq, Saturday, June. 14, 2014, after authorities urged Iraqis to help battle insurgents. Hundreds of young Iraqi men gripped by religious and nationalistic fervor streamed into volunteer centers across Baghdad Saturday, answering a call by the country's top Shiite cleric to join the fight against Sunni militants advancing in the north. (AP Photo/Karim Kadim)

Volunteers who have joined the Iraqi Army to fight against the predominantly Sunni militants, who have taken over Mosul and other Northern provinces, chant slogans in Baghdad, June 14, 2014. Iraq's most senior Shi'ite Muslim cleric urged followers to take up arms against a full-blown Sunni militant insurgency to topple Shi'ite Prime Minister Nuri al-Maliki, escalating a conflict that threatens civil war and a possible break-up of the country. REUTERS/Thaier Al-Sudani

Iraqi Shiite tribal fighters raise their weapons while chanting slogans against the al-Qaida inspired Islamic State of Iraq and the Levant (ISIL), in Baghdad's Sadr city, Saturday, June 14, 2014, after authorities urged Iraqis to help battle insurgents. Hundreds of young Iraqi men gripped by religious and nationalistic fervor streamed into volunteer centers across Baghdad Saturday, answering a call by the country's top Shiite cleric to join the fight against Sunni militants advancing in the north. The poster at top depicts Imam Hussein, a revered Shiite figure. (AP Photo/Karim Kadim)

Iraqi Shiite men shout slogans in support for the call to arms, in Baghdad's Sadr city, June 14, 2014. Grand Ayatollah Ali al-Sistani urged followers to take up arms against a full-blown Sunni militant insurgency to topple Shi'ite Prime Minister Nuri al-Maliki, escalating a conflict that threatens civil war and a possible break-up of the country. REUTERS/Thaier Al-Sudani

Iraqi Shi'ite men shout slogans in support for the call to arms by Grand Ayatollah Ali al-Sistani, who is the highest religious authority for Shi'ites in Iraq, in Baghdad's Sadr city, June 14, 2014. REUTERS/Thaier Al-Sudani

Volunteers from the Shi'ite Badr Organization, who have joined the Iraqi army to fight against the predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL) who have taken over Mosul and other northern provinces, chant slogans in Basra June 14, 2014. Iraqi Prime Minister Nuri al-Maliki told army officers in the city of Samarra that volunteers were arriving to help defeat Islamist militants who have swept through Sunni Muslim territory towards Baghdad. REUTERS/ Essam Al-Sudani

Iraqi Shiite men shout slogans in support for the call to arms in Baghdad, June 14, 2014. REUTERS/Ahmed Saad

Iraqi Shiite tribal fighters pose with their weapons in Baghdad's Sadr city, Iraq, Saturday, June 14, 2014, after authorities urged Iraqis to help battle insurgents. (AP Photo/Karim Kadim)

Masked Sunni gunmen pose with their weapons during a patrol outside the city of Falluja.

Kurdish Peshmerga security forces stand guard on the outskirts of the northern city of Mosul, Iraq, Saturday, June. 14, 2014. Fighters from the al-Qaida splinter group, drawing support from former Saddam Hussein-era figures and other disaffected Sunnis, have made dramatic gains in the Sunni heartland north of Baghdad after overrunning Iraq's second-largest city of Mosul on Tuesday. Soldiers and policemen have melted away in the face of the lightning advance, and thousands have fled to the self-rule Kurdish region in northern Iraq. (AP Photo)

Kurdish Peshmerga security forces stand guard in the outskirts of the northern city of Mosul, Iraq, Saturday, June. 14, 2014. (AP Photo)

Kurdish Peshmerga security forces stand guard on the outskirts of the northern city of Mosul, Iraq, Saturday, June. 14, 2014. Kirkuk fell under the control of the peshmerga this week after Iraqi army forces left. (AP Photo)

A member of Kurdish Peshmerga security forces stands guard on the outskirts of the northern city of Mosul, Iraq, Saturday, June. 14, 2014. (AP Photo)

A member of the Kurdish security forces takes his position with his weapon during a patrol in the outskirts of Kirkuk June 14, 2014. An offensive by insurgents that threatens to dismember Iraq seemed to slow on Saturday after days of lightning advances as government forces regained some territory in counter-attacks, easing pressure on the Shi'ite-led government in Baghdad. REUTERS/Azad Lashkari

Members of the Kurdish security forces stand with their weapons during clashes with Sunni militant group Islamic State of Iraq and the Levant (ISIL) in the outskirts of Kirkuk June 14, 2014. REUTERS/Azad Lashkari

Members of the Kurdish security forces look at a mortar shell on a road in the outskirts of Kirkuk June 14, 2014. REUTERS/Azad Lashkari

Member of the Kurdish security forces stand at an empty and damaged building during clashes with Sunni militant group Islamic State of Iraq and the Levant (ISIL) in the outskirts of Kirkuk June 14, 2014. REUTERS/Azad Lashkari

Member of the Kurdish security forces take their positions during clashes with Sunni militant group Islamic State of Iraq and the Levant (ISIL) in the outskirts of Kirkuk June 14, 2014. REUTERS/Azad Lashkari

Shiite tribal fighters raise their weapons and chant slogans against the al-Qaida-inspired Islamic State of Iraq and the Levant (ISIL) in the east Baghdad neighborhood of Kamaliya, Iraq, Sunday, June 15, 2014. Emboldened by a call to arms by the top Shiite cleric, Iranian-backed militias have moved quickly to the center of Iraq’s political landscape, spearheading what its Shiite majority sees as a fight for survival against Sunni militants who control of large swaths of territory north of Baghdad. (AP Photo)

Tribal fighters and members of Iraqi security forces carry their weapons as they take part in an intensive security deployment on the outskirts of Diyala province June 16, 2014. The United States is contemplating talks with its arch-enemy Iran to support the Iraqi government in its battle with Sunni Islamist insurgents who routed Baghdad's army and seized the north of the country in the past week. The stunning onslaught by militants from the Islamic State of Iraq and the Levant threatens to dismember Iraq and unleash all-out sectarian warfare across a crescent of the Middle East, with no regard for national borders that the fighters reject. REUTERS/Stringer

Iraqi army soldiers stand guard at Tahrir Square in Baghdad, Iraq, Monday, June 16, 2014. Sunni militants captured a key northern Iraqi town along the highway to Syria early on Monday, compounding the woes of Iraq's Shiite-led government a week after it lost a vast swath of territory to the insurgents in the country's north. (AP Photo/Khalid Mohammed)

An Iraqi army soldier stands guard at Tahrir Square in Baghdad, Iraq, Monday, June 16, 2014. (AP Photo/Khalid Mohammed)

Security forces patrol on Tahrir Square in Baghdad, Iraq, Monday, June 16, 2014. (AP Photo/Khalid Mohammed)

Volunteers, who have joined the Iraqi army to fight against the predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL) who have taken over Mosul and other northern provinces, wave from a truck in Baghdad, June 16, 2014. The United States is contemplating talks with its arch-enemy Iran to support the Iraqi government in its battle with Sunni Islamist insurgents who routed Baghdad's army and seized the north of the country in the past week. REUTERS/Ahmed Saad

A member from Iraqi security forces tosses a bottle of water to volunteers, who have joined the Iraqi army to fight against the predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL) who have taken over Mosul and other northern provinces, in Baghdad, June 16, 2014. REUTERS/Ahmed Saad

Iraqi Turkomen raise their weapons during an announcement proclaiming the formation of a defense system to protect their own areas at the Iraqi Turkmen Front Headquarters in the oil-rich city of Kirkuk, 180 miles (290 kilometers) north of Baghdad, Iraq, Monday, June 16, 2014. The town of Tal Afar, with a population of some 200,000 people, was taken just before dawn, Mayor Abdulal Abdoul told The Associated Press. The town's ethnic mix of mostly ethnic Shiite and Sunni Turkomen raises the grim specter of large-scale atrocities by Sunni militants from the al-Qaida-inspired Islamic State of Iraq and the Levant, who already claim to have killed hundreds of Shiites in areas they captured last week. (AP Photo/Emad Matti)

An Iraqi Turkoman fighter raises his rifle during an announcement proclaiming the formation of a defense system to protect their own areas at the Iraqi Turkmen Front Headquarters in the oil-rich city of Kirkuk, 180 miles (290 kilometers) north of Baghdad, Iraq, Monday, June 16, 2014. (AP Photo/Emad Matti)

A member of the Iraqi Special Operations Forces takes his position during clashes with the al Qaeda-linked Islamic State of Iraq and the Levant (ISIL) in the city of Ramadi June 19, 2014. Picture taken June 19, 2014. REUTERS/Stringer

Members of the Iraqi Special Operations Forces fire their weapons during clashes with the al Qaeda-linked Islamic State of Iraq and the Levant (Isis) in the city of Ramadi. Reuters

Members of the Iraqi Special Operations Forces engage in a firefight with the al-Qaeda-linked Islamic State of Iraq and the Levant (Isis) in Ramadi. Reuters

Members of the Iraqi Special Operations Forces take up positions during clashes with Isis militants. Reuters

Members of the Iraqi Special Operations Forces take their positions during clashes with Isis in Ramadi. Reuters

Tanks belonging to Iraqi security forces are seen in the city of Ramadi. Reuters

Al-Qaeda-linked fighters seized parts of Ramadi in late December. Reuters

A Mahdi Army fighter stands guards in front of a Shiite mosque as prayers leave after they attend their Friday prayer in the northern oil rich province of Kirkuk, Iraq, Friday June 20, 2014. Thousands of people fled the town of Taza Khormato fearing the advance of Sunni insurgents who overran the neighboring village of Kirkuk. Taza Khormato residents said insurgents led by the al-Qaida inspired Islamic State in Iraq and the Levant seized the nearby village of Basheer, shelling and burning down the houses. Both communities are dominated by ethnic Turkmen Shiites who are seen as heretics worthy of death by Sunni extremists. (AP Photo / Hussein Malla)

A Mehdi Army fighter loyal to Shi'ite cleric Moqtada al-Sadr participates in a military-style training in Najaf June 20, 2014. Iraqi forces were massing north of Baghdad on Friday, aiming to strike back at Sunni Islamists whose drive toward the capital prompted the United States to send military advisers to stiffen government resistance. REUTERS/Alaa Al-Marjani

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr march during a military-style training in Najaf June 20, 2014. REUTERS/Alaa Al-Marjani

Members of the Iraqi security forces who have never left their positions patrol in the Bansher district, 15 kilometers south of the oil-rich city of Kirkuk, Iraq, Friday, June 20, 2014. Iraqi army and police forces battling them for months have been unable to take most areas back, and over the past week or so the militants have also taken over the cities of Mosul and Tikrit. (AP Photo/Emad Matti)

Iraqi Shiite Turkmen gunmen shout religious slogans, as they prepare to patrol around their front line village of Taza Khormato, in the northern oil rich province of Kirkuk, Iraq, Friday June 20, 2014. (AP Photo/Hussein Malla)

A Kurdish peshmerga sniper takes his position behind sand barriers at the front line village of Taza Khormato, in the northern oil rich province of Kirkuk, Iraq, Friday June 20, 2014. Taza Khormato residents said insurgents led by the al-Qaida inspired Islamic State in Iraq and the Levant seized the nearby village of Basheer, shelling and burning down the houses. Both communities are dominated by ethnic Turkmen Shiites who are seen as heretics worthy of death by Sunni extremists. Thousands of people fled the town of Taza Khormato fearing the advance of Sunni insurgents who overran the neighboring village of Kirkuk. (AP Photo/Hussein Malla)

Kurdish peshmerga fighters takes their positions behind sand barriers at the front line village of Taza Khormato in the northern oil rich province of Kirkuk, Iraq, Friday, June 20, 2014. (AP Photo/Hussein Malla)

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr take part in a parade in Kerbala, June 21, 2014. Iraq's senior Shi'ite religious cleric Moqtada al-Sadr issued a call for unity, saying Shi'ites and Sunnis should rally behind the authorities to prevent the Sunni militant Islamic State of Iraq and the Levant from destroying the country. REUTERS/Mushtaq Muhammed

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr take part in a parade in Kirkuk, June 21, 2014. REUTERS/Ako Rasheed

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr march during a parade in Basra, southeast of Baghdad, June 21, 2014. REUTERS/ Essam Al-Sudani

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr march during a parade in Kerbala, June 21, 2014. Iraq's senior Shi'ite religious cleric Moqtada al-Sadr issued a call for unity, saying Shi'ites and Sunnis should rally behind the authorities to prevent the Sunni militant Islamic State of Iraq and the Levant from destroying the country. REUTERS/ Mushtaq Muhammed

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr take part during a parade in Basra, southeast of Baghdad, June 21, 2014. REUTERS/ Essam Al-Sudani

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr burn a U.S. flag during a parade in Baghdad's Sadr city, June 21, 2014. REUTERS/Wissm al-Okili

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr take part in a parade in Baghdad's Sadr city June 21, 2014. REUTERS/Ahmed Saad

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr take part during a parade in Baghdad's Sadr city June 21, 2014. REUTERS/Ahmed Saad

A member from the Mehdi Army stands guard during a parade in Baghdad's Sadr city June 21, 2014. REUTERS/Ahmed Saad

Volunteers in the newly formed "Peace Brigades" raise their weapons during a parade in the Shiite stronghold of Sadr City, Baghdad, Iraq, Saturday, June 21, 2014. The armed group was formed after radical Shiite cleric Muqtatda al-Sadr called to form brigades to protect Shiite holy shrines against possible attacks by Sunni militants. Iraqi security officials said Saturday that Sunni militants have seized a Syrian border crossing after killing some 30 Iraqi troops in a day of clashes. (AP Photo/Khalid Mohammed)

Volunteers of the newly formed "Peace Brigades" raise their weapons and chant slogans against the al-Qaida-inspired Islamic State of Iraq and the Levant during a parade in the Shiite stronghold of Sadr City, Baghdad, Iraq, Saturday, Saturday, June 21, 2014. (AP Photo/Khalid Mohammed)

A volunteer in the newly formed "Peace Brigades" trains near the Imam Ali shrine in the southern holy Shiite city of Najaf, Iraq, Friday, June 20, 2014, after calls by the radical Shiite cleric Muqtatda al-Sadr to form brigades to protect Shiite holy shrines against possible attacks by Sunni militants. (AP Photo/Jaber al-Helo)

Volunteers of the newly formed "Peace Brigades" participate in a parade in Basra, Iraq's second-largest city, 340 miles (550 kilometers) southeast of Baghdad, Iraq, Saturday, June 21, 2014. (AP Photo/Nabil Al-Jurani)

A volunteer in the newly formed "Peace Brigades" participate in a parade near the Imam Ali shrine in the southern holy Shiite city of Najaf, Iraq, Friday, June 20, 2014, after calls by the radical Shiite cleric Muqtatda al-Sadr to form brigades to protect Shiite holy shrines against possible attacks by Sunni militants. (AP Photo/Jaber al-Helo)

An Iraqi Shiite Turkmen gunman holds his RPG as he stands in front of a portrait of Iraqi Prime Minister Nouri al-Maliki, right, at the front line village of Taza Khormato, in the northern oil rich province of Kirkuk, Iraq, Friday June 20, 2014. Thousands of people fled the town of Taza Khormato fearing the advance of Sunni insurgents who overran the neighboring village of Kirkuk. Taza Khormato residents said insurgents led by the al-Qaida inspired Islamic State in Iraq and the Levant seized the nearby village of Basheer, shelling and burning down the houses. Both communities are dominated by ethnic Turkmen Shiites who are seen as heretics worthy of death by Sunni extremists. (AP Photo/Hussein Malla)

A top leader of the Mehdi Army using the nom de guerre Abu Deraa © stands during a parade in Baghdad's Sadr city, June 21, 2014. Iraq's senior Shi'ite religious cleric Moqtada al-Sadr issued a call for unity, saying Shi'ites and Sunnis should rally behind the authorities to prevent the Sunni militant Islamic State of Iraq and the Levant from destroying the country. REUTERS/Wissm al-Okili

An Iraqi Shiite masked militiaman speaks on his radio during a parade in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. Thousands of heavily-armed Shiite militiamen paraded through several Iraqi cities on Saturday as Sunni militants seized two strategically located towns in what appeared to be a new offensive in the western Anbar province. (AP Photo/Hussein Malla)

An armed Shiite militiaman, center, directs citizens during a parade by the followers of Shiite cleric Muqtada al-Sadr, as they shout anti-ISIL slogans during a parade in the northern oil rich province of Kirkuk, Iraq, Saturday June 21, 2014. (AP Photo/Hussein Malla)

An Iraqi policeman, right, stands guard as armed Shiite militiamen, followers of Shiite cleric Muqtada al-Sadr, parade in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. (AP Photo/Hussein Malla)

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr take part during a parade in Baghdad's Sadr city, June 21, 2014. REUTERS/Wissm al-Okili

An Iraqi Shiite militiaman, a follower of Shiite cleric Muqtada al-Sadr, jumps to break a placard with the name of the Islamic State of Iraq and the Levant (ISIL) during a parade, in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. (AP Photo/Hussein Malla)

Mehdi Army fighters loyal to Shi'ite cleric Moqtada al-Sadr march during a parade in Baghdad's Sadr city, June 21, 2014. Iraq's senior Shi'ite religious cleric Moqtada al-Sadr issued a call for unity, saying Shi'ites and Sunnis should rally behind the authorities to prevent the Sunni militant Islamic State of Iraq and the Levant from destroying the country. REUTERS/Wissm al-Okili

Armed Shiite militiamen, followers of Shiite cleric Muqtada al-Sadr, parade in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. Thousands of heavily-armed Shiite militiamen paraded through several Iraqi cities on Saturday, as Sunni militants seized two strategically located towns in what appeared to be a new offensive in the western Anbar province. (AP Photo/Hussein Malla)

An armed Shiite militiamen, right, stands next to supporters of Shiite cleric Muqtada al-Sadr, as they shout slogans against the Islamic State of Iraq and the Levant during a parade in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. (AP Photo/Hussein Malla)

An Iraqi policeman, left, walks in front of Shiite militiamen, followers of Shiite cleric Muqtada al-Sadr, joining a parade in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. (AP Photo/Hussein Malla)

An Iraqi Shiite masked militiaman, a follower of Shiite cleric Muqtada al-Sadr, holds up his machine gun during a parade in the northern oil rich province of Kirkuk, Iraq, Saturday, June 21, 2014. (AP Photo/Hussein Malla)

Volunteers in the newly formed "Peace Brigades" raise their weapons and chant slogans against the al-Qaida-inspired Islamic State of Iraq and the Levant during a parade in the Shiite stronghold of Sadr City, Baghdad, Iraq, Saturday, June 21, 2014. The armed group was formed after radical Shiite cleric Muqtatda al-Sadr called to form brigades to protect Shiite holy shrines against possible attacks by Sunni militants. (AP Photo/Khalid Mohammed)

Members of the Iraqi Special Operations Forces take their positions during a patrol looking for militants of the Islamic State of Iraq and the Levant (ISIL) and explosives and weapons, in a neighbourhood in Ramadi, June 10, 2014. Sunni fighters seized a border post on the Iraq-Syria frontier, security sources said on Saturday, June 21, 2014, smashing a line drawn by colonial powers almost a century ago with the aim of creating an Islamic Caliphate stretching from the Mediterranean Sea to Iran. The militants, led by the Islamic State in Iraq and the Levant (ISIL), first moved into the nearby town of al-Qaim on Friday, pushing out security forces, the sources said. Picture taken June 10, 2014.

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