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Gunmen patrol during clashes with Iraqi security forces in Fallujah, 40 miles (65 kilometers) west of Baghdad, Iraq, Sunday, Jan. 5, 2014.
Gunmen patrol during clashes with Iraqi security forces in Fallujah, 40 miles (65 kilometers) west of Baghdad, Iraq, Sunday, Jan. 5, 2014.

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    Iraq faces 'biggest fight' since US left

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Iraq faces 'biggest fight' since US left

CNN's Christiane Amanpour speaks with Mowaffak al-Rubaie, former Iraqi National Security Adviser.

Iraq faces 'biggest fight' since US left

CNN's Christiane Amanpour speaks with Mowaffak al-Rubaie, former Iraqi National Security Adviser.