I understand war is the last resort but sometimes places like Iran need a good snacking to change the way the people are treated in Iran

I don't disagree but since that's not the motivation for the US provoking Iran, and a war with Iran wouldn't achieve those goals unless they put about 750,000 soldiers on the ground for 25 years, it's a pretty stupid idea to try.

If it came to a set piece battle like a "formal" invasion of Iran, the US would probably win barely breaking a sweat (more difficult than Iraq but hardly so). But theyve never demonstrated an ability to either sufficiently oppress people, or make friends with them.

OTOH Iran's regime is pretty odious so...