Free Syrian Army fighters, take their positions as they observe the Syrian army forces base of Wadi al-Deif, at the front line of Maarat al-Nuaman town, in Idlib province, Syria, Tuesday Feb. 26, 2013. Syrian rebels battled government troops near a landmark 12th century mosque in the northern city of Aleppo on Tuesday, while fierce clashes raged around a police academy west of the city, activists said. (AP Photo/Hussein Malla)