At least 23 Syrian civilians were killed Saturday in suspected Russian air strikes on a rebel-held town outside Damascus, a monitor said. Elsewhere, the Islamic State group freed 37 Syrian Christians who were among more than 200 people kidnapped in February, an NGO said. The strikes on...

Chemical weapons experts have determined that mustard gas was used in a Syrian town where Islamic State insurgents were battling another rebel group, according to a report by an international watchdog seen by Reuters. A confidential Oct. 29 report by the Organisation for the Prohibition...

Although Russia claimed to be targeting terrorism when it launched airstrikes in Syria last month, moderate opposition groups and civilians in their controlled areas were the most affected, even more than Daesh. The Russian Defense Ministry claimed Tuesday that its air forces hit 2,084...

 Chemical weapons experts have determined that mustard gas was used during fighting in Syria in August, according to a report by an international watchdog seen by Reuters. The chemical - which causes severe delayed burns to the eyes, skin and lungs and is banned under international law...