A Syrian rebel retreats for cover from enemy fire at the Moaskar front line in the Karmal Jabl neighborhood of Aleppo. Heavy fighting was reported Thursday in the western cities of Allepo and Al Rastan. (Associated Press)

A Syrian rebel retreats for cover from enemy fire at the Moaskar front line in the Karmal Jabl neighborhood of Aleppo. Heavy fighting was reported Thursday in the western cities of Allepo and Al Rastan. (Associated Press)