There were no civilian cars on the streets of Mosul, Iraq, last December, when the veteran war photographer Don McCullin and I hitched a ride in an Iraqi Army pickup. A few children smiled and flashed V signs at us, but the adults’ stares betrayed hostility or, at best, caution. If Islamic State fighters returned, anyone seen consorting with the army would be punished.
The soldiers took us to an abandoned house in Hay Tahrir (“Liberation Quarter”), a working-class neighborhood in the northeast. Islamic State fighters had only recently been expelled from the area. A blanket was tacked up…