You dumb as fukk. First, Iran is in mainland middle east, not on the coast, and on the other side of both straights. You literally have to cross numerous pro-iranian countries to get there.
Second, US has gained such a bad rep from Israel over the last 6 months, literally no one will back them in this besides their puppets. Russia WILL intervene directly.
Lastly, Israel is a failed state. More than a million "citizens" of Israel flew back to their original countries because they dont want to be drafted or lost faith in the state. A MILLION IN 6 MONTHS.
They are not about that life and their military is 90% reservist with about as much experience in combat as a school resource officer. They have absolutely no combat skills.
If this was a video game, their stats would be:
Israel:
Infantry: 1 star
Tech: 4 star
Spy Network: 5 star
This allows them to stomp out most underdeveloped countries from a distance but they have no chance in hell of occupying or conquering because their soldiers are some of the worst in the world.
Meanwhile Iran:
Infantry: 4 stars
Tech: 3 stars
Spy Network: 5 stars
This would be a bloodbath on both sides but Israel would lose because more than half their population is duel citizens who WILL run the second it gets bad. US is cancelled out by Russia.
But I promise you JORDAN, SAUDIS, EGYPT, and everyone else who is a partner to the US WILL NOT UNDER ANY CIRCUMSTANCES FIGHT IRAN.
But every last ally of Iran WILL FIGHT Israel.