Attack that left at least 89 dead during military graduation ceremony likely to lead to renewed violence between government and insurgents

Air Force commander in Middle East says Moscow may share drone modification tech with Tehran, which can then be used to support regime in Damascus

Suspects include founder of group that later folded into Islamic State, who is accused of war crimes against Shiites

Dozens of people demonstrate in Daraa, Sweida provinces, openly call for end to Syrian president's rule, 12 years after bloody civil war began

Sergei Surovikin, formerly commander of war effort against Ukraine, transferred to new role, amid speculation he may have been detained due to ties with mercenary leader

Woods on shores of Euphrates attracted tourists, provided shade and defense from dust storms, but civilians impoverished by war have cut down trees, mainly for firewood

Bab al-Hawa gateway used by 85% of deliveries to rebel-held northwest Idlib region; agreement comes after dispute over terms for sending supplies to area

Monthly cash allowances for all 119,000 refugees in Zaatari and Azraq camps to be reduced from $32 to $21

Two countries maintained relations even as most Arab League countries isolated Damascus over crackdown on 2011 protests

UN says more than four million people in northwest Syria are in need of food, water, medicine and other essentials, with supplies suspended in since Monday