The best way for the Saudis and other Arab states to respond to an armed Iran is to work with the U.S. to create an effective secondary sanctions regime.
For Hussein Ibish's latest contributions to The Japan Times, see below:
The main strength of the 2002 Arab Peace Initiative for the Palestinians was that it could be presented as an Arab consensus. That is now broken, giving them no leverage.
Tehran is seeking military leverage while Washington wants to capitalize on overlapping crises.