Abdul Qadir al-Saleh, the leader of the Syrian rebel group Liwa al-Tawhind, died Sunday of wounds sustained in an air strike last week in Aleppo. Abdul Aziz Salama, Liwa al-Tawhind’s political leader, will take over for Saleh. Saleh was meeting with other senior members of the brigade Thursday at the time of the strike, and he and another wounded leader were rushed to Turkey for treatment. But Saleh succumbed to his injuries, and his body has been transferred back to Syria for burial, Liwa al-Tawhind said Monday. Aleppo was once a key battleground for the rebels, but it has fallen under the government’s control in recent weeks while the army has also seized power in several strategic bases nearby.