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Iraqi forces sit in the back of a vehicle as troops advance through the desert on the banks of the Tigris river, northeast of the main staging base of Qayyarah, on October 20, 2016, during an operation against Islamic State (IS) group jihadists to retake the main hub city of Mosul.
A wide array of Iraqi and international forces are involved in the fight to retake Mosul from the Islamic State jihadist group, which overran the country's second city in 2014. / AFP / AHMAD AL-RUBAYE        (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)
Iraqi forces sit in the back of a vehicle as troops advance through the desert on the banks of the Tigris river, northeast of the main staging base of Qayyarah, on October 20, 2016, during an operation against Islamic State (IS) group jihadists to retake the main hub city of Mosul.
A wide array of Iraqi and international forces are involved in the fight to retake Mosul from the Islamic State jihadist group, which overran the country's second city in 2014. / AFP / AHMAD AL-RUBAYE        (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

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Iraqi PM: Mosul operation ahead of plan

Fighting forces pushing toward Mosul are going faster than expected, Iraq's Prime Minister Haider al-Abadi said. CNN's Clarissa Ward reports.

Iraqi PM: Mosul operation ahead of plan

Fighting forces pushing toward Mosul are going faster than expected, Iraq's Prime Minister Haider al-Abadi said. CNN's Clarissa Ward reports.