HAWIJA, IRAQ - SEPTEMBER 24: Soldiers of the Hashd Al-Shaabi (Popular Mobilisation Forces) prepare to fight in an offensive to drive out Islamic State militants on September 24, 2017 in Hawija, Iraq. The Hashd Al-Shaabi announced the offensive on September 20th, to liberate the Hawija region of northern Iraq from the control of Islamic State militants. Hashd Al-Shaabi has already liberated the villages and 140 square kilometers of territory in the region. (Photo by Martyn Aim/Corbis via Getty Images)