It is obviously Hezbolla's fault for instigating this piece of the ongoing war.
It is obviously Israel's fault for reacting in a way that is not only inhumane but generates more enemies than it kills (just like us after 9/11).
It is obviously the fault of those groups that have been encouranging and arming the militants in the region, including Syria, Iran and another hundred countries which encourage their weapons-industries to sell to people who are likely to use weapons for offensive purposes.
It is obviously the fault of every leader of every country who could offer abundant resources to separate the combatants and grow the economies and democratic structures of the regions which breed terrorism out of their discontent. This definitely includes every European country.
It is obviously the fault of the US for inciting hatred all across the middle east and for justifying and glorifying over-reaction and denegrating peace work.
It is obviously my fault if I take any more time writing this before writing to my representatives to insist that they be immediately and visibly active towards creating peace and standing against fault-finding and retribution mentalities.