All humor aside, if there is a possibility that we will be in a fight directly with Iran (and not just the terrorists they are sending across the border), we are in for a bit more of a "fight" than the Iraqis put up.
The Iranians are a great deal better equipped and organized than the Iraqis have been for over a decade. I would venture to say that the Iranians expect us to take them on in the near future - either because of their nuclear program, or because Iran has eyes on hitting Iraq soon after our departure (maybe the reason the liberals and some weak-kneed RINOs keep talking about deadlines?).
IT's going to take a far stronger stomach for a war with Iran than Iraq. I for one hope it doesn't come to it - too bad limp-wristed Jimmy Carter chose to not do anything....