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Open Image ModalGunmen patrol during clashes with Iraqi security forces in Fallujah, Iraq in this Jan. 5, 2014 picture. (AP Photo) (credit:AP)
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Open Image ModalGunmen patrol during clashes with Iraqi security forces in Fallujah, Iraq in this Jan. 5, 2014 picture. (AP Photo) (credit:AP)
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Open Image ModalA gunman aims his weapon during clashes with Iraqi security forces in Fallujah, Iraq in this Sunday, Jan. 5, 2014 picture. (AP Photo) (credit:AP)
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Open Image ModalGunmen guard during clashes with Iraqi security forces in Fallujah, Iraq, in this Jan. 5, 2014 picture. (AP Photo) (credit:AP)
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Open Image ModalMohammed Layth Ahmed weeps over the coffin of his father, Layth Ahmed, an Iraqi soldier who was killed during clashes in Ramadi, during his funeral procession in the Shiite holy city of Najaf, south of Baghdad, Iraq, on Monday, Jan. 6, 2014. (AP Photo/Jaber al-Helo) (credit:AP)
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Open Image ModalMourners carry the flag-draped coffin of Iraqi soldier Layth Ahmed, who was killed during clashes in Ramadi, during his funeral procession in the Shiite holy city of Najaf, Iraq, Monday, Jan. 6, 2014. AP Photo/Jaber al-Helo) (credit:AP)
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Open Image ModalGunmen declare the founding statement of the Military Council of Fallujah rebels, in Fallujah, Iraq, Monday, Jan. 6, 2014. (AP Photo) (credit:AP)
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Open Image ModalIraqis gather at the scene of a car bomb that detonated outside a central police station in the northern Iraqi city of Kirkuk on January 7, 2014. (MARWAN IBRAHIM/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalIraqis check their destroyed properties close to the the scene of a suicide car bomb that detonated outside a central police station in the northern Iraqi city of Kirkuk on January 7, 2014. (MARWAN IBRAHIM/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalIraqis inspect the burnt out remains of an Iraqi army Armoured Personnel Carrier along the side of the highway leading to the Anbar provincial capital of Ramadi, following clashes between Iraqi security forces and militants in the province on January 7, 2013. (AZHAR SHALLAL/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalMembers of an Iraqi Shiite fighters militant group called Kataib Sayyid al-Shuhadaa, or Master of Martyrs Brigades, chant slogans against the Sunni-dominated Free Syrian Army rebel group and the al-Qaida-affiliated Jabhat al-Nusra during the funeral procession of Yusuf Abdullah in the Shiite holy city of Najaf, Iraq, in this Jan. 6, 2014 photo. (AP Photo/Jaber al-Helo) (credit:AP)
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Open Image ModalMembers of an Iraqi Shiite fighters militant group Kataib Sayyid al-Shuhadaa carry the coffin of Yusuf Abdullah during his funeral procession in Najaf, Iraq, in this Jan. 6, 2014 photo. (AP Photo/Jaber al-Helo) (credit:AP)
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Open Image ModalAn Iraqi family with their belongings strapped to their car flee their home during clashes between the Iraqi army and al-Qaida fighters in Fallujah, Iraq, Monday, Jan. 6, 2014. (AP Photo) (credit:AP)
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Open Image ModalA boy selling fuel waits for customers after the closing of all fuel stations in Fallujah, Jan. 6, 2014. (AP Photo) (credit:AP)
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Open Image ModalCivilians buy medicine from the only open pharmacy in Fallujah, Iraq, Jan. 6, 2014. (AP Photo) (credit:AP)
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Open Image ModalIraqi soldiers monitor the traffic moving along a road in the area of Ein Tamer which leads west out of the central Iraqi Shiite Muslim shrine city of Karbala towards the mainly Sunni Muslim city of Fallujah, on January 6, 2014. (AHMAD AL-RUBAYE/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalIraqi security forces and people gather at the site of a road side bomb attack in central Baghdad, Iraq, Jan. 5, 2014. (AP Photo/Hadi Mizban) (credit:AP)
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Open Image ModalIraqi riot police officers grieve during the funeral procession for a fellow officer Methaq Jaber, who was killed during clashes between Iraqi army and al-Qaeda fighters in Anbar province, in Basra, Iraq's second-largest city, Jan. 5, 2014. (AP Photo/Nabil al-Jurani) (credit:AP)
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Open Image ModalBasra riot police unit convoy returns to its headquarters from the clashes between Iraqi army and al-Qaeda fighters in Anbar province, in Basra, Iraq, Jan. 5, 2014. (AP Photo/Nabil al-Jurani) (credit:AP)
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Open Image ModalBurnt-out lorries are seen littering the side of the main highway leading west, out of the capital Baghdad, to the city of Fallujah, on January 5, 2014. (Sadam el-Mehmedy/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalIraqi men queue to fill containers with fuel in Fallujah, Iraq on January 5, 2014. (Sadam el-Mehmedy/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA man shows off the V-sign for victory as he stands on top of a burn out lorry on the side of the main highway leading west out of the capital Baghdad to Fallujah, on January 5, 2014. (Sadam el-Mehmedy/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalIraqi men from local tribes brandish their weapons as they pose for a photograph in the city of Fallujah, on January 5, 2014. (Sadam el-Mehmedy/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalMourners and Sunni gunmen chant slogans against Iraq's Shiite-led government during the funeral of a man killed when clashes erupted between al-Qaida gunmen and Iraqi army soldiers on Friday, his family said, in Fallujah, Iraq, Saturday, Jan. 4, 2014. (AP Photo) (credit:AP)
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Open Image ModalAl-Qaida fighters set up a checkpoint looking for policemen and army soldiers in front of the main provincial government building, in Fallujah, Iraq, Jan. 1, 2014. (AP Photo) (credit:AP)
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Open Image ModalA police truck full of prisoners being transported was set afire by al-Qaida fighters after they freed prisoners in front of the main provincial government building, in Fallujah, Iraq, Jan. 1, 2014. (AP Photo) (credit:AP)
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Open Image ModalAn Iraqi federal policeman searches a man at a checkpoint in Baghdad, Iraq, Tuesday, Dec. 31, 2013. (AP Photo/Karim Kadim) (credit:AP)
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Open Image ModalIraqi Sunni masked protesters burn tires to blocked the main highway to Jordan and Syria, outside Fallujah, Iraq, Dec. 30, 2013. (AP Photo) (credit:AP)