I originally assumed it was Netanyahu leading the US into Iran but from reading/looking around seems it might have been Trump’s idea and lead - maybe because no leader in the world, whatever their motivations, is as mad as trump and would consider the very things he doesn’t and so Israel might have known Iran wasn’t for a quick win.
However, Netanyahu does seem to have pretty free rein in Lebanon and who knows wha is happening in Gaza so it is probably of benefit to him whether deliberately planned with the US or just by hanging on their coat tails.
I’m not sure of Iran’s capacity for this but there’s thought they’ve planned the possibility for a long time so do have some contingency plans and capacity to wear down the opposition.
I don’t know enough about anything here so I don’t why it started or how it will end, maybe future history students can view it clearly.
But for now, for me, it is depressing for the world and scary.