Though one should not be foolhardy enough to trust his words, Trump seems to be clearly signaling his next battle plan is on infrastructure. From air. How does that suggest ground war? Even a cursory look at Iran suggests you need a couple of hundred ground troops for any kind of ground action. That is simply not there. Also, where are the weapons, armor, ammunition, supply lines etc. for a ground war? That needs 30 to 60 days to assemble at its fastest. And where will it be assembled in the middle of a war?