Article Photos: Mortar shells strike Damascus, killing at least 10 1/10

FILE - In this Tuesday Feb. 26, 2013 file photo, Free Syrian Army fighters take their positions as they observe the Syrian army forces base of Wadi al-Deif, at the front line of Maaret al-Numan town, in Idlib province, Syria. America's Arab allies have dramatically stepped up weapon supplies to Syrian rebels in preparation for a push on the capital Damascus, the main stronghold of President Bashar Assad, officials and Western military experts say, with one official saying airlifts to neighboring Jordan and Turkey have doubled the past month. The U.S. and other Western governments are involved to channel the flow toward more secular fighters, they say. The influx appears to be boosting a rebel drive to seize supply routes from the border with Jordan to Damascus. (AP Photo/Hussein Malla, File)