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Newly-recruited Iraqi volunteers, loyal to Shiite cleric Moqtada al-Sadr, in army uniforms take part in a training on June 19, 2014 in the capital Baghdad as thousands of Shiite volunteers join Iraqi security forces in the fight against Jihadist militants who have taken over several northern Iraqi cities.
Newly-recruited Iraqi volunteers, loyal to Shiite cleric Moqtada al-Sadr, in army uniforms take part in a training on June 19, 2014 in the capital Baghdad as thousands of Shiite volunteers join Iraqi security forces in the fight against Jihadist militants who have taken over several northern Iraqi cities.

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What will U.S. advisers do in Iraq?

There's "an art" to U.S. military advising, says CNN military analyst and retired Lt. Col. Rick Francona.

What will U.S. advisers do in Iraq?

There's "an art" to U.S. military advising, says CNN military analyst and retired Lt. Col. Rick Francona.