The strategic northern city of Aleppo remains the focus of the latest violence in Syria, home to some of the most devastating fighting seen in the last 18 months.<br /><br />The opposition fighters' weapons are unable to protect them from attacks from the air, and such sorties are causing the most casualties among rebel ranks.<br /><br />Al Jazeera's Zeina Khodr has this exclusive report from the embattled city.
