MOSUL, IRAQ - JULY 8: An injured Iraqi man who has been detained from among civilians and suspected of being an Islamic State militant by Iraqi forces cries in the occupied Old City district where heavy fighting continues on July 8, 2017 in Mosul, Iraq. Iraqi forces continue to encounter stiff resistance from Islamic State with improvised explosive devices (IED's), suicide bombers, heavy mortar fire, gas attacks and snipers hampering their advance. (Photo by Martyn Aim/Corbis via Getty Images)
