Will KSA declare war with Iran? My point is, in term of war, it's too early to ask U.S. at this moment. Yes, I know the pressure to go to war inside Trump administration is high, But I trust Trump can handle it and hold it very well (Letting Bolton go is a good example).
OK, here is my answer: No war! But it doesn't mean do nothing. More sanctions and if possible bring more countries to join the sanctions. Right now Iran wants to be attacked because they are suffering from sanctions. Their calculation is that such an attack from the great Satan will get the support of their people, classical tactic that switches the internal crisis to external issue. But just because they want to be attacked doesn't mean we should thereby be deterred from doing so, that's not what I meant. My point is the sanction clearly is working, we should keep doing sanctions and more sanctions if possible.