Iraqi Peshmerga fighters regained control of Sinjar, a strategic town that had been held by ISIS for over a year, in early November, 2015. "We found between 30 and 40 tunnels inside Sinjar," a Peshmerga commander Shamo Eado told the Associated Press.
Sinjar is important because it’s close to Highway 47, which has been one of the most active supply lines for ISIS.
. The network of tunnels built by Islamic State militants are complete with sleeping quarters, wired with electricity and are fortified with sandbags. Photo was taken on Dec.1.
. A member of the Peshmerga forces inspects a tunnel used by Islamic State militants in Sinjar.