I said a few days ago that doing nothing is a viable option and there is a good reason why.
Iran is showing all those western mouth pieces that they value their own self preservation rather than mindless death.
Anyone who is seeing clearly can see that Iran is being incited and goaded to retaliate and show what they can do.
Should Iran not be successful in it's attack they look vulnerable, should they be successful they get war, should they do nothing this may cause internal division, it's about the least worst option.
Effectively Iran are in check, protecting the king.