A policeman uses a scanner to check a resident's car at a checkpoint during intensified security measures in Baghdad
A policeman uses a scanner to check a resident's car at a checkpoint during intensified security measures in Baghdad, June 30, 2014. Iraqi security forces intensified security measures in and around capital as Iraqi troops battled to dislodge an al Qaeda splinter group from the city of Tikrit after its leader was declared caliph of a new Islamic state in lands seized this month across a swathe of Iraq and Syria. Military vehicles and soldiers were deployed on a bridge overlooking Tigris river in north Baghdad to deter expected attacks by Sunni militants of Islamic State of Iraq and the Levant (ISIL). REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
A policeman holds the leash of a sniffing dog as it checks a vehicle at a checkpoint in Baghdad
A policeman holds the leash of a sniffing dog as it checks a vehicle at a checkpoint in Baghdad, June 30, 2014. Iraqi security forces intensified security measures in and around capital as Iraqi troops battled to dislodge an al Qaeda splinter group from the city of Tikrit after its leader was declared caliph of a new Islamic state in lands seized this month across a swathe of Iraq and Syria. Military vehicles and soldiers were deployed on a bridge overlooking Tigris river in north Baghdad to deter expected attacks by Sunni militants of Islamic State of Iraq and the Levant (ISIL). REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
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A policeman uses a scanner to check a resident's car at a checkpoint during intensified security measures in Baghdad
A policeman uses a scanner to check a resident's car at a checkpoint during intensified security measures in Baghdad, June 30, 2014. Iraqi security forces intensified security measures in and around capital as Iraqi troops battled to dislodge an al Qaeda splinter group from the city of Tikrit after its leader was declared caliph of a new Islamic state in lands seized this month across a swathe of Iraq and Syria. Military vehicles and soldiers were deployed on a bridge overlooking Tigris river in north Baghdad to deter expected attacks by Sunni militants of Islamic State of Iraq and the Levant (ISIL). REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
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Iraqi soldiers rest after clashes with militants of the Islamic State of Iraq and the Levant in the town of Jurf al-Sakhar
Iraqi soldiers rest after clashes with militants of the Islamic State of Iraq and the Levant (ISIL) in the town of Jurf al-Sakhar, south of Baghdad,June 30, 2014. Iraqi troops battled to dislodge the al Qaeda splinter group from the city of Tikrit on Monday after its leader was declared caliph of a new Islamic state in lands seized this month across a swathe of Iraq and Syria. Alarming regional and world powers, the ISIL claimed universal authority when it dropped the local element in its name and said its leader Abu Bakr al-Baghdadi, as leader of the Islamic State, was now caliph of the Muslim world - a medieval title last widely recognised in the Ottoman sultan deposed 90 years ago after World War One. REUTERS/Alaa Al-Marjani (IRAQ - Tags - Tags: CIVIL UNREST CRIME LAW MILITARY)
Iraqi security forces ride on vehicles during an intensive security deployment in the town of Jurf al-Sakhar
Iraqi security forces ride on vehicles during an intensive security deployment in the town of Jurf al-Sakhar, south of Baghdad,June 30, 2014. Iraqi troops battled to dislodge an al Qaeda splinter group from the city of Tikrit on Monday after its leader was declared caliph of a new Islamic state in lands seized this month across a swathe of Iraq and Syria. Alarming regional and world powers, the Islamic State of Iraq and the Levant (ISIL) claimed universal authority when it dropped the local element in its name and said its leader Abu Bakr al-Baghdadi, as leader of the Islamic State, was now caliph of the Muslim world - a medieval title last widely recognised in the Ottoman sultan deposed 90 years ago after World War One. REUTERS/Alaa Al-Marjani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
Iraqi security forces prepare during an intensive security deployment in the town of Jurf al-Sakhar
Iraqi security forces prepare during an intensive security deployment in the town of Jurf al-Sakhar, south of Baghdad, June 30, 2014. Iraqi troops battled to dislodge an al Qaeda splinter group from the city of Tikrit on Monday after its leader was declared caliph of a new Islamic state in lands seized this month across a swathe of Iraq and Syria. Alarming regional and world powers, the Islamic State of Iraq and the Levant (ISIL) claimed universal authority when it dropped the local element in its name and said its leader Abu Bakr al-Baghdadi, as leader of the Islamic State, was now caliph of the Muslim world - a medieval title last widely recognised in the Ottoman sultan deposed 90 years ago after World War One. REUTERS/Alaa Al-Marjani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)