Gee, this sounds familiar.
A bit of WWII history, on Operation Ketsu-Go...
https://irp.fas.org/eprint/arens/chap4.htm
We nuked Japan.
Twice.
Fortunately for freedom-loving Iranians, we don’t need to nuke these days.
We’ve got more options and more flexibility.
So that’s a hard no on the land invasion.
And a heck yeah on the alternatives.
It’s gonna suck to be what’s left of the regime and its allies.