Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants from the radical Islamic State of Iraq and the Levant, gather with their weapons during a parade in Al-Fdhiliya district
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL), gather with their weapons during a parade in the streets in Al-Fdhiliya district, eastern Baghdad June 15, 2014. The insurgent offensive that has threatened to dismember Iraq spread to the northwest of the country on Sunday, when Sunni militants launched a dawn raid on a town close to the Syrian border, clashing with police and government forces. REUTERS/Thaier Al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants from the radical Islamic State of Iraq and the Levant, carry weapons during a parade in Al-Fdhiliya district
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL), carry weapons during a parade in the streets in Al-Fdhiliya district, eastern Baghdad June 15, 2014. The insurgent offensive that has threatened to dismember Iraq spread to the northwest of the country on Sunday, when Sunni militants launched a dawn raid on a town close to the Syrian border, clashing with police and government forces. REUTERS/Thaier Al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants, carry weapons during a parade in Al-Fdhiliya district
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants, carry weapons during a parade in the streets in Al-Fdhiliya district, eastern Baghdad, June 15, 2014. The insurgent offensive that has threatened to dismember Iraq spread to the northwest of the country on Sunday, when Sunni militants launched a dawn raid on a town close to the Syrian border, clashing with police and government forces. REUTERS/Thaier Al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants from the radical Islamic State of Iraq and the Levant, carry weapons during a parade in Al-Fdhiliya district
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL), carry weapons during a parade in the streets in Al-Fdhiliya district, eastern Baghdad June 15, 2014. The insurgent offensive that has threatened to dismember Iraq spread to the northwest of the country on Sunday, when Sunni militants launched a dawn raid on a town close to the Syrian border, clashing with police and government forces. REUTERS/Thaier Al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
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Volunteers who have joined the Iraqi Army to fight against the predominantly Sunni militants, who have taken over Mosul and other Northern provinces, board army trucks in Baghdad
Volunteers who have joined the Iraqi Army to fight against the predominantly Sunni militants, who have taken over Mosul and other Northern provinces, board army trucks 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 (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
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
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 (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
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Volunteers, who have joined the Iraqi army to fight against the predominantly Sunni militants from the radical ISIL who have taken over Mosul and other northern provinces, prepare to board a bus in Baghdad
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, prepare to board a bus 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. In a rare intervention at Friday prayers in the holy city of Kerbala, a message from Grand Ayatollah Ali al-Sistani, who is the highest religious authority for Shi'ites in Iraq, said people should unite to fight back against a lightning advance by militants from the radical Islamic State of Iraq and the Levant. REUTERS/Thaier Al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY CONFLICT)
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants chant slogans in Baghdad
Volunteers, who have joined the Iraqi Army to fight against predominantly Sunni militants who have taken over Mosul and other northern provinces, chant slogans in Baghdad June 14, 2014. Iraq's most influential Shi'ite cleric urged people on Friday to take up arms and defend the country against fighters from Islamic State in Iraq and the Levant (ISIL), who overran the city of Mosul earlier this week and have since advanced southwards. REUTERS/Thaier Al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)