Similarly, were the US to declare "victory" or whatever and set off back to the US and tell Israel to "cease and desist", the things that are really upsetting Iran simply disappear and "bingo" - the War ends. Quietly, the rest of the world can then try and sort out the mess we currently have as Iran won't be trying to sink ships in the Straits of Hormuz and the US will be too busy as it "celebrates" a "Grand Victory" - or whatever - on the streets of Washington.
It's not in Iran's interest to end the war under those conditions. The U.S. or Israeli's can come back whenever they like and hit missile factories or nuclear sites, and Iran's still under sanctions with a destroyed economy without the capital to rebuild. You can say they should have thought of that, or it serves them right. But that ignores the incredibly strong hand they have.
Instead, Iran will continue to blockade Hormuz until they force an agreement which provides sanctions relief, and the GCC make some kind of agreement to prevent Israel / U.S. attacking again. Likely a quiet back-channel demand for reparations, too, which will get covered by the GCC.
Time is on the side of Iran here, not anyone else. The economic dislocation of the last three weeks is now massive, and it's been surprising that western governments have kept a lid on how bad things are going to get. Silly stories about 50mph speed limits and some rationing in the UK are a distraction. Even if the war ends tomorrow, oil and gas facilities don't just restart instantly. Tankers - both oil and gas - are not in the right places around the world. Similar story for fertilisers. Soon, tankers and ships will be really dislocated. The ones that are currently reaching ports in Asia and Europe, do they turn around or wait? How long does the O&G restart take? How long before the U.S. verifies that Hormuz has not been mined, or the mines dealt with, to allow normal traffic levels to resume? Oil, gas and fertiliser prices will take many, many months to get back to pre-war levels.
The economic impact is felt in food supply and prices, as well as energy prices. With central banks being torn between putting up interest rates to counter inflation, at the same time as the multi-trillion dollar private credit market is showing extreme signs of stress, with contagion to the main banking system. And this is going on even if the war stops today. It's far worse than it seems.
Iran is the size of Alaska. We see planes going down in the deserts and jungles across the world which disappear for years despite extensive searches. Are the U.S. going to be able to locate every missile and drone launcher sooner than the economic pain becomes unbearable? Which is really only another 2-3 weeks. I doubt it.
A tactic of ratcheting up the pain for Iran, such as attacking their oil fields, will cause Iran to do the same to their neighbours. Out of five missiles fired into Qatar's main field, one got through and shut off 15-20% production for 2-5 years. No one can afford more O&G going offline in that region of the world.
Navies from the U.K./Europe/Japan/Australia getting into this mix solves nothing. It prolongs the economic pain, and the fallout is going to hit the U.K./Europe/Japan/Australia/NZ and Asia hardest. Africa, too, due to food prices. In the unlikely event some of these countries should choose to get involved with their Navy's, they should take a leaf out of Trump's transactional book and demand significant payment for the work. A few billion £'s/Euro's month from protecting conveys can soften the blow of economies back home and the cost of the military operation. Of course, this cost will just be added to the price of oil/gas/fertiliser, but that's someone else's problem, not the countries providing the ships. I'm surprised Trump hasn't already indicated that he'll leave unless paid by the GCC.
The problem is the chasm between what Iran, Israel and the U.S. all need to end the war. It needs serious, good faith, rapid negotiations. There's a massive shortage of that in all the main parties to the conflict.