Syria's President Bashar al-Assad (L) speaks with Shukri Bin Suleiman Harmasi (R), secretary general of the Tunisian Immutable Principles Party, during a meeting in Damascus, May 23, 2013.
A Syrian rebel fires shells against government forces in Idlib, northern Syria, May 23, 2013.
Security forces loyal to Syria's President Bashar al-Assad take part in a field exercise at an undisclosed location, May 22, 2013. (SANA via Reuters)
This citizen journalism image provided by Qusair Lens shows people gathered by houses that were destroyed in an airstrike in Qusair, Homs province, Syria, May 21, 2013.