This may be of interest to you.
I saw a related article earlier today. There is no doubt that Iran can create some damage with its 600 ballistic missiles, but it can’t be decisive. The accuracy is good enough to hit area targets as small as refineries, but total damage would be relatively small.
The Gulf allows excellent positioning of our CG’s and DDG’s to shoot these down. Our forces in Iraq are also suitably placed to engage with PACIII. I don’t think Iran is stupid enough to launch on Arab cities, but you never know.
Hopefully, we won’t give the three months heads up to hide these things all over.