I don't think that the Iranian regime will collapse anytime soon. But I do feel that they are in deeper trouble than they care to appreciate. The US and Zionists are out to destroy the Iranian nation if they cannot own it. The Iranian regime could still exist as a holdout in a portion of Iran and continue fighting. But by then, Iran itself will cease to be a force in the Middle East. The Islamic Republic can continue fighting for decades, yes. But they could be reduced to the state of the Houthis in Yemen. I do hope I'm wrong about their fate.
There's a not unreasonable chance that should CENTCOM find itself facing greater Iranian resistance than expected or whatever rosy picture CG Mike Kurilla painted, Trump will declare victory and call it quits after some B-2 and/or B-52 bombers "successfully" strike Iranian UGFs, that would've otherwise been beyond Israeli reach, assuming Iran agrees to refrain from launching more missiles against Israel and/or if it's no longer in a position to do so for now.
In Yemen, when the
got
, Trump made peace with the Houthis, so there's precedence for such a scenario. Trump even went so far as to express his admiration for Houthi bravery:
Not sure if Trump will have similar praise for the Iranians, but if regime change is not achieved in Tehran in the next few months, if not next several weeks, Trump might "kick the can down the road" and circle back against Iran next year before the midterms.
They need to build up way more than this. Look at Operation Desert Shield which took 4 months.
They were rotating forces out of Diego as recently as 1 month ago so they did not have a sufficient medium term buildup.
The other part is geography. The Persian gulf is a death trap so the navy should be at standoff distance in the Arabian Sea. That would substantially limit sortie generation relative to Desert Storm where they parked carriers in the gulf itself.
Trump has
zero interest in executing something like Operation Desert Shield or Operation Iraqi Freedom. He might not be as against "forever wars" as he had claimed, but he also knows sending hundreds of thousands of American troops into Iran isn't going to win him much favor or praise at home.
TBF Iran is bigger than Iraq and Afghanistan combined, so a serious ground invasion of Iran isn't necessarily something the US is even capable of without activating significant reserves, if not a visible and significant surge in USMC and US Army recruitment.
As such, Trump wants to minimize the role US ground troops will play as the conflict escalates against Iran. In fact, Trump might even tell the Israelis and the Israel Lobby to "fuck off" if they starting demanding actual ground invasion.