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TOPSHOT - Iraqi soldiers look on as smoke rises from the Qayyarah area, some 60 kilometres (35 miles) south of Mosul, on October 19, 2016, as Iraqi forces take part in an operation against Islamic State (IS) group jihadists to retake the main hub city. In the biggest Iraqi military operation in years, forces have retaken dozens of villages, mostly south and east of Mosul, and are planning multiple assaults for October 20. / AFP / YASIN AKGUL (Photo credit should read YASIN AKGUL/AFP/Getty Images)

TOPSHOT - Iraqi soldiers look on as smoke rises from the Qayyarah area, some 60 kilometres (35 miles) south of Mosul, on October 19, 2016, as Iraqi forces take part in an operation against Islamic State (IS) group jihadists to retake the main hub city.
In the biggest Iraqi military operation in years, forces have retaken dozens of villages, mostly south and east of Mosul, and are planning multiple assaults for October 20. / AFP / YASIN AKGUL        (Photo credit should read YASIN AKGUL/AFP/Getty Images)