Islamic State head abandons Mosul fight to field commanders
It is impossible to confirm the whereabouts of the Islamic State "caliph," who declared himself the ruler of all Muslims from Mosul's Great Mosque after his forces swept through northern Iraq in '14.
Iraqi Special Operations Forces (ISOF) gather during an operation to clear the al-Zirai district of Islamic State militants in Mosul.(photo credit: REUTERS)ByREUTERSUpdated: