Israeli soldiers drive a tank at a staging area in the Golan Heights, near the border between the Israeli-controlled Golan Heights and Syria, on Aug. 29, 2013. United Nations experts are investigating the alleged use of chemical weapons in Syria as the United States and allies prepare for the possibility of a punitive strike against President Bashar Assad's regime, blamed by the Syrian opposition for the attack. The international aid group Doctors Without Borders says at least 355 people were killed in the Aug. 21 attack. (Associated Press)

Photo by: Bernat Armangue

Israeli soldiers drive a tank at a staging area in the Golan Heights, near the border between the Israeli-controlled Golan Heights and Syria, on Aug. 29, 2013. United Nations experts are investigating the alleged use of chemical weapons in Syria as the United States and allies prepare for the possibility of a punitive strike against President Bashar Assad's regime, blamed by the Syrian opposition for the attack. The international aid group Doctors Without Borders says at least 355 people were killed in the Aug. 21 attack. (Associated Press)