The scope for conflict is not limited to middle east states sparring with each other. The US and its counterparts have trillions-of-dollars worth of assets and millions of military personnel and civilians in the region. And that includes Israel, which contributes so much to the US' computer, medical and security industries. Such commitments cannot be left undefended vis-à-vis the ambitions of Israel's enemies.
U.S. warns governments, bankers Iran sanctions still in place (Reuters)
from the article: Obama must stop demanding the impossible from Israel