But the US not getting into direct action against Iran does not mean they are not part of all this. Israel is like its proxy and I do not believe that Israel just decides on its own to make big military decisions that would cause chaos in the middle eastern region.
I doubt they (the US) are in any way involved with Israel to cause the war, the thing is, both Israel and Iran have been enemies for a long time and have always have this disagreement and intentions to bomb and destroy each others one day. So, it's not new and I don't think I believe that US is secretly involved or do you have any source that put up a convincing facts that this is true?