Yazidi female fighter Asema Dahir, 21, adjusts her cap inside a bedroom at a site near the frontline of the fight against Islamic State militants in Nawaran near Mosul, Iraq, April 20, 2016.

When Islamic State swept into the northern Iraqi town of Sinjar in 2014, a few young Yazidi women took up arms against the militants attacking women and girls from their community.
Ahmed Jadallah/Reuters