Fighters of the Hashed Al-Shaabi (Popular Mobilization units) advance through a street in the town o

Fighters of the Hashed Al-Shaabi (Popular Mobilization units) advance through a street in the town of Tal Afar, west of Mosul, after the Iraqi government announced the launch of the operation to retake it from Islamic State (IS) group control, on August 26, 2017.
AHMAD AL-RUBAYE / AFP