Unless Trump perceives a new unexpected threat I don't see him backing down. Russian and Chinese opposition has been accounted for.
Europe's more belligerent opposition as opposed toothless diplomatic speeches may give them a reason to pause. Say, cancellations of major contracts where the primary beneficiary would have been the US.
Don't know whether it will happen, but am happy to see some European countries to take a stand and back their stand with more than words.
Trump is a boomer who grow in a age where American power was incontested. Second, he is a narcisist and he will let Rome burn down before he let someone call him a loser.
Third. Even if our gerontocrat had a saner mind, I doubt he would be able to control Israel. Let them alone fighting Iran, with their missile defense depleted leting Iranian missiles rain down everywhere, Bibi would surely nuke Tehran and the Yemen, so I don't even think there's a way out of this.
Europe has one 'weapon' they can use but they can use it just once: dump the bonds. The problem with that is that you need a reason big enough that by the time you're going to do it it will likely be too late to be effective and as a punitive measure it makes little sense, it's just one step short of a declaration of war. If Trump goes ahead with this madness then tomorrow morning the world economy will be in shambles, no matter what. Note that we got here ostensibly to 'free the Iranian people', apparently they need to be murdered to make them free. It's grotesque.
It is to you and me. Not everyone sees it that way.
When one day the dust settles, hopefully of the benign kind, I wish some lessons to be learned on what kind of leaders to elect.
This has had me so disturbed, that I have barely been able to get much work done for weeks. Work that I enjoy doing. Then I think of Iranian citizens and feel guilty about complaining.
At least we have answers to the question of how World War II started. All it takes is a couple of idiots that think they are all powerful and the stage is set.