Rebel fighters ride a tank in an artillery academy of Aleppo, Syria, August 6, 2016. REUTERS/Ammar Abdullah

Rebel fighters ride a tank in an artillery academy of Aleppo, Syria, August 6, 2016. REUTERS/Ammar Abdullah

Rebel fighters ride a tank in an artillery academy of Aleppo, Syria, August 6, 2016. REUTERS/Ammar Abdullah

August 8, 2016 8:34 AM (UTC+8)