Baghdad

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Former U.S. Ambassador to Iraq Ryan Crocker said Tuesday that Secretary of State John Kerry "should be on a plane right now for Baghdad" as Iraq's government struggles to defend the capital from ISIS militants. (CBS News)

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Iraqis who have fled the violence in their hometown of Mosul unload their car at Khazir refugee camp outside of Irbil, 217 miles north of Baghdad, Iraq, Monday. (associated press)

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Shiite tribal fighters raise their weapons and chant slogans against the al-Qaida-inspired Islamic State of Iraq and the Levant (ISIL) in Basra, Iraq's second-largest city, 340 miles (550 kilometers) southeast of Baghdad, Iraq, Monday, As the U.S. masses air power on Iraq's doorstep, analysts are warning that missiles and bombs will have limited impact on Islamic militants unless the Iraqi army stops running and starts fighting. (AP Photo/ Nabil Al-Jurani)

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National Edition News cover for June 12, 2014 - Extremists’ gains in Iraq lead to fears of a decade’s progress lost: 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)