It isn't unprovoked, Iran current regime has chanted "Death to America" since its founding. USA has plenty of reasons to attack here which is why you don't see more international outcry or support for Iran. Iran are on their own.
Yet none have been provided, remember the anthrax scam at the united nations? At least they put some efforts into it
I am not talking about international laws here, just the norms everyone follows in wars. Everyone breaks the international laws, but the norms of not attacking third parties etc are there for rational reasons, since you don't gain anything for doing so its just stupid and causes damage and strife and hurts you for doing it.
Of course, since they did not ask for the congress approval, which is already against their own constitution. That's exactly the kind of things you do when you're a good guy doing the right thing
> but the norms of not attacking third parties etc are there for rational reasons, since you don't gain anything for doing so its just stupid and causes damage and strife and hurts you for doing it.
What norms? No wars = no rules of war, they started something they can't control anymore
They gain plenty from doing it in term of leverage, nobody attacked Iran in such way until now because it was well understood that this is exactly how it would play out
In any case, somebody chanting a thing isn't causus belli, nor is publicly wanting someone to die.
> why you don't see more international outcry or support for Iran
What you don't see is international support for the USA or israel's war on Iran, hence why the strait of hormuz is effectively closed right now.