Protesters wave the pre-Baath Syrian flag, now used by the Free Syrian Army, as they shout slogans against the Syrian and Iranian regimes during a demonstration outside the Iranian embassy in the Egyptian capital Cairo on February 6, 2013. Egyptian President Mohamed Morsi urged Syrian opposition groups to unify, as he addressed leaders of Islamic states at a summit of the Organisation of Islamic Cooperation in Cairo. Iran is the chief regional backer of Syrian President Bashar al-Assad, while Egypt and Gulf powerhouse Saudi Arabia bitterly oppose Assad and support rebels seeking his ouster. Photo by Ahmed Asad