The news I'm seeing indicates that Trump's declared a deadline of 48 hrs. for Iran to open the Strait of Hormuz or face all-out destruction that's been ticking down for a while already and Iran seems to recognize that it's in an existential fight to the finish and is basically saying f.u. and forget negotiations, since Trump & his admin have proved they absolutely cannot be trusted.
And both Iran and the US & Israel have already threatened irreversible destruction of one another's infrastructures including nuclear power plants in the region; and as you know, we're already bombing the nuclear plant in Isfahan, although I think we're claiming that we're somehow doing so without risk of nuclear catastrophe, which seems to me implausible.
And Iran has now sent 2 ICBM missiles, apparently coming very close to hitting an island target 4,000 mis. away, one of which filed and the other of which we claim we've intercepted, but without clarifying whether we nonetheless suffered any damage from the flack. The 4,000-mi. range could reach central Europe, among other places.
And thousands of Iranians have already been killed, many of them civilians including many children; and of course there have been many more wounded.
If I were the rest of the world, I'd band together to try to stop the US & Israel.