First: Baghdad, Riyadh, UAE, Kuwait, oil facilities, etc., attacked with conventional warheads.
Second: Russia and China will threaten to protect Iran from any attacks, as Iran will become the only intact oil producer in the region.
Third: The United States, Britain and Europe thrown into chaos from oil shortages.
Fourth: Israel, not been directly attacked, will enter a period of hightened political indecision and chaos.
Don’t underestimate these guys, they invented chess.