Members of the main opposition groups in Syria have issued their own plan for ending the violence in their country, saying more than 1,200 have been killed since Kofi Annan, the U.N. and Arab League envoy, announced the Syrian regime’s “agreement” to his six-point proposal.

Detailing the opposition's alternative plan exclusively to Fox News, Ammar Abdulhamid, an influential Syrian human rights activist, said Annan’s initiative clearly had “failed.” He also said that, given Syrian President Bashar al Assad’s track record for reneging on such agreements, “there was no reason for anyone to be surprised by the turn of events.”

Backed by the Obama administration, Annan had managed to shore up support from the U.N. Security Council’s 15 members – among them Russia and China, which earlier had vetoed resolutions aimed at reining in the Syrian regime. Central to Annan’s plan was a call for a cease-fire by 6 a.m. this Thursday, Damascus time, with troop withdrawal and other conditions set for its implementation.