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Iraqi Kurdish Peshmerga fighters gather in Sinjar, west of the northern Iraqi city of Mosul on December 21, 2014 after an operation which broke the second Islamic State jihadist group (IS) siege of Mount Sinjar this year. The operation threatens the links between the city of Mosul, the main IS stronghold in Iraq, and territory the militant group controls in neighbouring Syria.
Iraqi Kurdish Peshmerga fighters gather in Sinjar, west of the northern Iraqi city of Mosul on December 21, 2014 after an operation which broke the second Islamic State jihadist group (IS) siege of Mount Sinjar this year. The operation threatens the links between the city of Mosul, the main IS stronghold in Iraq, and territory the militant group controls in neighbouring Syria.

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    One year later: ISIS stills controls Mosul

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One year later: ISIS stills controls Mosul

One year later, Iraq has not recaptured it's second largest city from ISIS. CNN's Ben Wedeman explains.

One year later: ISIS stills controls Mosul

One year later, Iraq has not recaptured it's second largest city from ISIS. CNN's Ben Wedeman explains.