The US is the largest manufacturer of weapons in the world. In addition, a very powerful military. An integral part of the US economy is the defense sector and weapon production and sales internationally. Various US states protect these factories and the associated jobs and incomes within their states. Israel MIC plays a partial role in the US Military Industrial Complex. It is in the interest of both nations, along with many of the Arab peninsula nations, to ensure that Iran does not continue to expand the military might of its proxies, which already have over 200,000 fighters and much weaponry. So the US and it peninsula allies in varying degrees will try economically, politically and militarily to diminish Iran’s influence and expansion.