Are you serious about Israel invading Iran? Have you ever looked at a map?
If the US were to invade, there wouldn't be any Israeli involvement because none would be needed or wanted.
As for Israel invading? That's seriously daft. Israel's population is less than a tenth of Iran's and they are separated by 500 miles and two sovereign nations.
Israel has about as much ability to invade Iran as the state of Iowa.
If Iran IS invaded, they won't be getting any Chinese assistance for pretty much the same reason. China has no ability to project that much power that far away from home and they have historically shied away from that sort of thing anyway.
I suspect you are the type of person who sees Mossad agents behind your favorite football team's losses.