Israeli warplanes launched an attack on a convoy in Syria early Wednesday morning in what was believed to be a strike targeting a convoy carrying weaponry intended for Hezbollah's militia. The Syrian military denied that a convoy had been struck and Israeli official would not confirm the airstrike at all. The attack comes just days after Israel deployed its Iron Dome missile defense system in the north, an area that was bombed during the 2006 war with Lebanon. Isabel Kershner, reporter for our partner The New York Times, explains what's behind the attack.