When did Israel BOMB Syria??
Late September 2007. Nuclear facility near Iraqi border. Israeli planes flattened the structure, which allegedly was a North Korean-Syrian-(Iranian) nuklear weapons facility.
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The fact of the matter is that this is all a pretty much very enigmatic incident; nobody is saying anything (not even the victim). Futhermore, Syria boasts the most dense anti-aircraft system of any nation in the world (over 200 separate installations throughout the country), and they've recently implemented the very latest of Russian anti-aircraft technology. This anti-aircraft technology is so new, that it hasn't been even implemented by Russian military (Syria had to have paid top dollar to get their hands on it).
The net result is that Israel was able to conduct not just aerial operations, but ground operations, with utter and absolute impunity, not just within Syria, but Turkey (who complained the day after the incident of Israeli drop tanks being found throughout their country. The ground operartions are implicated from reports that Israeli commando's took possession/recovered nuclear material from the site in question prior to its "neutralization".
Its not really clear what actually happened, but that something did happen is pretty much beyond dispute. This especially so given that in October Barak pretty much confirmed that an operation did occur, where he stated that he was aware of it and that he fully supported it since the beginning.