Syria attacked Israel without provocation.
Israel attacked Syria, too, But Israel had plenty of provocation, The Syrian Army was massing on her borders. And Israel has never used her WMDs, and certainly not on her own people.
Israel has nothing to do with this, other than as the usual fall-back excuse Arabs go for every time they get their ass caught in a wringer. I have lots of problems with Israel's foreign policy, but this is not one of them.