Keep in mind that the majority of Iranians (circa 90%) are Shia, so don't expect a divisional war like Afghanistan or Iraq. Don't think for one minute that the US and its allies will have an easy job of it if war eventuates. From what I've seen the Yanks can't even beat the ancient tribals in the Northern Sub Continent, or anyone else for that matter - in a modern sense.
Even so, I don't hold much hope for the preferred option of diplomacy, given Trumps negligible skills.
In any case, one hopes that sense prevails and war is averted.
