I'll say at the outset that from my limited reading of the situation, the attack against Iran was unprovoked. It was not an act of retaliation against any Iranian attack on Israel or the U.S. In other words, Iran did not throw the first punch. This shows that the regimes of both Donald Trump and Benjamin Netanyahu are guilty of a criminal act. (Regarding Israel, my last shreds of sympathy for Israel are evaporating right now. Netanyahu seems like a singularly rigid, unimaginative, and brittle head of state in such times as these.) The problem for both nations is that Iran is much closer to a near-peer state than the U.S., and that attacking Iran will harden anti-Israel sentiment across the entire Mideast. Israel, having managed to alienate many people by its actions in Gaza, seems bent on escalating the alienation still further. As for Iran, it has defensive and offensive missile capabilities which pose a serious threat to U.S. military assets in the region. It has begun to use those capabilities. And those capabilities are about to be augmented.
It's time for the rest of the world to recognize that the United States is now itself a rogue state. The rest of the world does have the collective power to bring this rogue state to heel, but only if it presents a united or nearly united front. As for whether bringing the U.S. to heel involves military responses, I will reserve any comment or opinion. However, the rest of the world can definitely impose the kinds of steps of economic noncooperation (including even sanctions) that can render the U.S. powerless. Please decouple from the U.S. - completely.
I'll also say that those members of the U.S. military who choose to obey Trump's orders are men without conscience. They may be merely people who have chosen to indulge in what Hannah Arendt called the banality of evil, or they may have chosen more enthusiastically to support the Trump/America First agenda, but either way they are people who have thereby forever lost my respect. Right now I don't support our troops.
An additional problem for the U.S. is that this nation's malignant narcissism - expressed through the potent poison of white supremacy and American exceptionalism - may damage and erode the capability of the leaders of the U.S. to discern reality to such an extent that they will choose to launch unprovoked military attacks on nations that are even closer to near-peer status than Iran. This could result in disastrous consequences for the world in general and for the U.S. in particular. These consequences may last a very long time.