(FILES)- An October 11, 2012 file photo shows Syrian rebel fighters holding up their guns as they shout slogans in a street in the northern city of Aleppo following shelling by government forces. Syria's uprising has shifted from popular street protests against President Bashar al-Assad to a full-fledged war, increasingly influenced by armed Islamists, in a far cry from the idealism of the Arab Spring. AFP PHOTO/TAUSEEF MUSTAFA