If syria hasn't went public about its full support to lebanon incase of "potential" Israeli aggression to lebanon, we would have already witnessed a war. Israel is aware of Syria's relationship to Turkey and Syria's defense treaty with Iran. It would be very stupid from Israel to launch a war against Lebanon or Syria. The next war be a real war, a devestating war for everyone.
Opposition leader Isaac Herzog calls on government to allow Syrian refugees into Israel (Haaretz)
from the article: Egypt denies calling Israel an 'enemy state'