For comparison, Iran's annual military budget is somewhere between $7B and $11B [1], representing 2-2.5% of estimated GDP. The US military budget currently exceeds $1T+ and the ask for 2026 is expected to be $1.5T+, representing almost 5% of GDP. And the US simply cannot end this conflict militarily short of the use of nuclear weapons. I don't mean that as hyperbole. I mean it literally.
There are long-term consequences to this war (and the 12 day war last year), namely the depletion of missile defence munitions (eg Patriot, THAAD) that will take years to replenish and this will have ripple effects on allies as well as certain theaters (eg moving THAAD interceptors and radars from South Korea to the Gulf).
Over half of the military budget goes towards weapon systems, arguably incredibly overpriced weapon systems. Put another way, it's a scam to move money from government coffers to private weapons manufacturers.
The inability to open the Strait of Hormuz militarily was not a surprise to US military leadership or intelligence agencies. It was only a surprise to the president (IMHO) who believed he could do a repeat of a Venezuelan decapitation strike. But Iran unlike Venezuela has suffered under reprehensible and unjustifiable sanctions and military adventurism by the US and its proxies such that the entire Iranian national project is built to resist US aggression, understandably. So that was never going to work.
This will have to end diplomatically. It will be worse for the US than it was before this war. Iran has something better than a nuke: it has a nuke they can use (e closing the Strait) and the US forced them to use it and prove that it works.
Now it's just a questio9n of how long this impassse goes on for before it ends and so far at least the US would rather let the world burn than split with Israel. Again without hyperbole I say, splitting with Israel effectively means the end of American empire. And the whole world is suffering for it.
[1]: https://tradingeconomics.com/iran/military-expenditure