BEIRUT — Syrian government forces pressed ahead with their offensive in the water-rich Barada Valley northwest of Damascus on Tuesday as 10 rebel groups said they were suspending talks about planned peace negotiations because of what they describe as ongoing government violations of a cease-fire deal.
The cease-fire, brokered by Russia and Turkey, is meant to be followed by talks later this month in the Kazakh capital of Astana between mainstream rebel factions and government representatives.
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