Reports from the scenes of Russia's air strikes suggest that the targeting of groups other than Isis was deliberate. Yet the detail may not matter.
A senior negotiator describes the rejection of an alleged proposal, since then tens of thousands have been killed and millions displaced.
A Western-backed coalition of Syria's opposition to President Bashar al-Assad says it is ready to work with the US to fight the Islamic State.
The United Nations will vote on a draft resolution which will allow the delivery of humanitarian aid to Syrians without government consent.
The Syrian government is crushing rebel fighters and human rights organisations have evidence it is still using chemical weapons on its people.
Syria's governement says a presidential election will take place on June 3, but Western leaders say the vote is a "parody of democracy".
Syria's exiled opposition will be barred from a presidential election to be held before July, virtually ensuring Bashar al-Assad's re-election.
The international mediator for Syria has apologised for a lack of progress at "laborious" talks in Geneva.
Russia has offered assurances that the Syrian government will soon ship more toxic agents abroad for destruction.
Aid agencies in Syria have evacuated hundreds of people from the rebel-held Damascus suburb of Yarmouk.
Syria has started moving chemical weapons materials out of the country as part of the disarmament programme, which has faced technical problems.
Despite global outrage over the use of chemical weapons, Bashar al-Assad's government is successfully exploiting divisions among the opposition.
Long-delayed peace talks aimed at ending the Syrian conflict have provisionally been set for November 23.
Following a chemical attack in Damascus, disarmament experts will begin cataloguing Syria's arsenal of chemical weapons in order to destroy it.
At least nine people, most of them students, were killed in an air strike that hit a school in the rebel-held Syrian city of Raqqa on Sunday.
South Africa has welcomed a decision providing for the destruction of chemical weapons in Syria, the department of international relations has said.
People in the Alawite heartland of Qerdaha say they are willing to die for the Syrian president.
President Bashar al-Assad is willing to get rid of Syria's chemical weapons arsenal, but says it will cost $1-billion and take a year.