> They're really good at curb-stomping much weaker opponents, like [..] Iran

That remains to be seen, though. Really winning that war requires either lots of boots on the ground and a long occupation (where the outcome might still be like in Afghanistan) or using nukes, which could escalate quite badly for us all. There is a reason no other POTUS has attacked Iran before.

Of course Trump can at every point in time just declare victory and leave the mess to all others for cleaning up. That is the most likely outcome, IMHO.