I would be remiss if I didn't mention the USA can be pulled into a far greater war in the Middle East if there was an assault against Israel. If Israel could not defend itself because of an overwhelming assault the USA would have to respond. I'd hate to think the USA would have to defend Israel against it's own military sales.
Providing enough military sales to the Sunnis in order to end the Shi'ites is an indictable crime at the Hague.
I don't care if Trump doesn't subscribe to international courts, the world would not stand for it.
Perhaps now the P4 plus one will understand Iran's urgency to dissolve the agreement.
Trump is forcing Iran to consider nuclear proliferation.