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Iraqi forces deploy in the area of al-Shourah, some 45 kms south of Mosul, as they advance towards the city to retake it from the Islamic State (IS) group jihadists, on October 17, 2016.
Iraqi Prime Minister Haider al-Abadi announced earlier in the day that the long-awaited operation to recapture Mosul was under way.
 / AFP / AHMAD AL-RUBAYE        (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)
Iraqi forces deploy in the area of al-Shourah, some 45 kms south of Mosul, as they advance towards the city to retake it from the Islamic State (IS) group jihadists, on October 17, 2016.
Iraqi Prime Minister Haider al-Abadi announced earlier in the day that the long-awaited operation to recapture Mosul was under way.
 / AFP / AHMAD AL-RUBAYE        (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

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    Battle to retake ISIS stronghold Mosul underway

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Battle to retake ISIS stronghold Mosul underway

CNN's Nick Paton Walsh is embedded with a Peshmerga convoy near Mosul, Iraq, and has the latest on the battle for the ISIS stronghold.

Battle to retake ISIS stronghold Mosul underway

CNN's Nick Paton Walsh is embedded with a Peshmerga convoy near Mosul, Iraq, and has the latest on the battle for the ISIS stronghold.