Syrian opposition fighters from the al-Farouq Brigade in the town of Halfaya, in Hama province, on December 18, 2012.

Syrian opposition fighters from the al-Farouq Brigade in Halfaya, in Hama province. Syrian rebels have warned two Christian towns in the central region of Hama they will be attacked if they do not evict pro-regime fighters, according to a video distributed by a watchdog on Saturday.