They should have invaded Syria instead. Oh, wait, perhaps the real problem here is that Syria would be a much more costly show of force... despite the fact that they have a lot more to do with the provocation than Lebanon's government has.

Maybe the real issue here is that Lebanon is weak, and therefore easily picked on.

They should have invaded Saudi Arabia | North Korea instead. Oh, wait, perhaps the real problem here is that Saudi Arabia | North Korea would be a much more costly show of force... despite the fact that they have a lot more to do with the provocation than Iraq's government has.

Maybe the real issue here is that Iraq is weak, and therefore easily picked on.
I couldn't decide if that should be Saudi Arabia or North Korea. I guess it depends on whether you're going with the "9/11 provocation" or the "WMD provocation".