Following the Houla massacre and the consequent Free Syrian Army ( FSA ) ultimatum to the Syrian government , the cease-fire practically collapsed towards the end of May 2012 , as the FSA began nationwide offensives against the government troops . On 1 June , the Syrian President Bashar al-Assad vowed to crush the anti-government uprising , after the FSA announced that it was resuming “ defensive operations . ” Following a prolonging discourse of the peace mission , Kofi Annan resigned on 2 August 2012 . On 17 August , Lakhdar Brahimi was appointed the new UN-Arab League peace envoy for Syria
Houla massacre
Houla massacre
Lakhdar Brahimi Syrian peace plan