what has trio got to do with it? iran was more at fault than syria - they supplied the weapons, they are the 'godfather' of the hizb. so israel should have attacked iran as well?
anyway: '67 WAS started by Egypt when it closed the Straits of Tiran. That alone was an act of War. (read the int'l law about such subjects) - let alone all
THIS - so, the notion that Israel started this war is false.
Up until now over 6 major terrororganization's headquarters are located in Syria - and my private suspicion is that Israel wanted to 'show off' to tell Asad that it is not unnoticed that he's housing (funding?) groups that 'work' against Israel even now while he pretends to pursue peace. (but this is totally unbased, only my guess)