Syrian rebels declare new battle against government
Syrian rebel groups announced a new battle against government forces on Monday, a sign of escalating violence that has undermined a ceasefire deal and threatens to derail U.N.-led peace talks.
The groups, which included factions fighting under the banner of the Free Syrian Army and powerful Islamist Ahrar al-Sham, said in a statement they would respond "with force" against any government forces that fired on civilians.
