In this June 16, 2014, file photo, demonstrators chant pro-Islamic State group slogans as they carry the group's flags in front of the provincial government headquarters in Mosul, Iraq. Under its leader, Iraqi jihadi Abu Bakr al-Baghdadi, the Islamic State group top command is dominated by former officers from Saddam Hussein's military and intelligence agencies, according to senior Iraqi officers and top intelligence officials. (AP Photo, File) **FILE**
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